If you want to resolve the issue of Inclusivism you need to ask yourself if you believe that sin is problem that man is unable to remedy. If so, what is the remedy? Is the remedy for sin knowledge? Through enlightenment or education can man advance beyond the short comings of sin, ie Modernism or is sin more serious than that? We will not resolve our differences by trying to appeal to the work of Christ. Why? Because I would suggest to you that the Inclusivist believes that all are saved either directly or indirectly through the work of Christ.
The irony here is that the Calvinist on this thread are arguing that it is necessary to present the gospel in order to be saved and the freewill theists on this board are arguing that the Lord will providentially save whomever he choses. I do not know if your aware of the history of this debate, but typically the Calvinist have been accused of being anti-missions and the freewillers are more prone to door to door evangelism. On this board something strange has happened. The nature of the freewill argument has been exposed and they have been painted into a proverbial corner and now they are forced to either give up the system that put them in that corner or move forward the only logical way they can. It is no coincidence that the freewillers here are becoming Inclusivist. Open Theism is the logical conclusion of free will theology. One thing open theist share in common is type of pluralism or a thoroughgoing Inclusivism.
Be very careful when you start trying to justify how individuals can be saved apart from the gospel. A theologian many hundreds of years ago made a wager. It is called Pascal's wager. The wager goes something like this, "What if what you are teaching is true? What will be the result? What if what I am teaching is true? What will be the result? Are you willing to be wrong in either case?"
Let me make an attempt to recount some of the more noteworthy distinctions that have been brought to light thus far. My view is that God is sovereign and created the world with a predetermined outcome. That this world is the best of all available worlds or it is ideal inasmuch as God created it and he is omniscient, omnipotent, and omnipresent, ie perfect. Therefore, he could have created the world another way but he chose to create this world the way he did. As a part of that creation man was endowed with a free moral agency. The fall resulted from man's rebellion. Sin has now entered the world and completely corrupts man's relationship with God the creator. While God elected some and not others, each one who is elect must believe on Jesus Christ in order to be saved. Those who are non-elect will not believe on Jesus Christ, either due to an inability or lack of opportunity. Regardless, man's will is not coerced or forced or violated in the process of regeneration and conversion to Christ. Apart from the gospel there is no opportunity for salvation.
Now let's say that I am wrong about my assertion. I still believe in the necessity of presenting the gospel to everyone. Why? Because while God may know who the elect are, I in fact do not. Therefore it is necessary for me to appeal to all of the world to receive Christ. In the end I believe that not one will be lost who was intended for salvation. But if I am wrong and salvation is open ended and left to chance or genetics or whatever else may be the factor that determines who believes and and does not believe then what have I lost? Let's say that I am a freewill theologian. What more can I do to see everyone on earth get saved than go share the gospel with everyone on earth? I already want to do that as a reformed theologian. So I have lost nothing. Once more worse still, let's suppose that the Inclusivist are right and I am wrong. It does not really matter anyway, does it, because let's say that I try my best but still only cover 30% of the world population. Well that's okay, because the remaining 70% can thank their lucky stars.
BIG IF, but what if I am right and the freewillers are wrong about Inclusivism and the indispensable nature of presenting the gospel? That is a huge risk to take. Why? Because the remaining 70% are going to hell apart from a personal relationship with Jesus Christ. In order have a personal relationship with Jesus Christ those remaining 70% must have faith in Christ. In order to have faith in Christ you must be told about Christ and believe in your heart that Jesus Christ is Lord and that God has raised him from the dead.
Romans 10:5-17 states (ESV):
5 For Moses writes about the righteousness that is based on the law, that the person who does the commandments shall live by them. 6 But the righteousness based on faith says, “Do not say in your heart, ‘Who will ascend into heaven?’” (that is, to bring Christ down) 7 or “‘Who will descend into the abyss?’” (that is, to bring Christ up from the dead). 8 But what does it say? “The word is near you, in your mouth and in your heart” (that is, the word of faith that we proclaim); 9 because, if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved. 10 For with the heart one believes and is justified, and with the mouth one confesses and is saved. 11 For the Scripture says, “Everyone who believes in him will not be put to shame.” 12 For there is no distinction between Jew and Greek; the same Lord is Lord of all, bestowing his riches on all who call on him. 13 For “everyone who calls on the name of the Lord will be saved.”
14 But how are they to call on him in whom they have not believed? And how are they to believe in him of whom they have never heard?And how are they to hear without someone preaching? 15 And how are they to preach unless they are sent? As it is written, “How beautiful are the feet of those who preach the good news!” 16 But they have not all obeyed the gospel. For Isaiah says, “Lord, who has believed what he has heard from us?” 17 So faith comes from hearing, and hearing through the word of Christ.