Since when does "The whole world" automatically mean all individuals? If the world series is going on and the announcer says "The eyes of the whole world are on this moment" do you think that literally means every individual? No, of course not.
And where does it say God loves everyone equally? No, the unsaved are under the WRATH of God.
So explain this;
Joh 1:29 The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.
Heb 9:26 For then must he often have suffered since the foundation of the world: but now once in the end of the world hath he appeared to put away sin by the sacrifice of himself.
2Co 5:
18 And all things [are] of God, who hath reconciled us to himself by Jesus Christ, and hath given to us the ministry of reconciliation;
19 To wit, that God was in Christ, reconciling the world unto himself, not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.
20 Now then we are ambassadors for Christ, as though God did beseech [you] by us: we pray [you] in Christ’s stead, be ye reconciled to God.
21 For he hath made him [to be] sin for us, who knew no sin; that we might be made the righteousness of God in him.
The "us" are the apostles and prophets and Christians who preach salvation through Christ to the gentiles, the world.
2Co 1:1 Paul, an apostle of Jesus Christ by the will of God, and Timothy [our] brother, unto the church of God which is at Corinth, with all the saints which are in all Achaia:
I am not guessing about this because he says so in 2 Cor 6.
2 Co 6:1 We then, [as] workers together [with him], beseech [you]
also that ye receive not the grace of God in vain.
[how is that possible?]
2 (For he saith, I have heard thee in a time accepted, and in the day of salvation have I succoured thee: behold, now [is] the accepted time; behold, now [is] the day of salvation)
3 Giving no offence in any thing, that the ministry be not blamed:
4 But in all [things] approving ourselves as the ministers of God,
One can receive the grace of God in vain if his faith is not accompanied with heart felt repentance. I know that because of these words in the same context.
11 O [ye] Corinthians, our mouth is open unto you, our heart is enlarged.
12 Ye are not straitened in us, but ye are straitened in your own bowels.
13 Now for a recompence in the same, (I speak as unto [my] children,) be ye also enlarged.
14 Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
15 And what concord hath Christ with Belial? or what part hath he that believeth with an infidel?
16 And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in [them]; and I will be their God, and they shall be my people.
17 Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean [thing]; and I will receive you,
18 And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.
We learn that reconciliation is not salvation but it creates an environment wherein salvation is possible by the removal of that which causes enmity between two parties. In this case it is sin and the offended party has moved to make the reconciliation. However, reconciliation is a two way street and the perpetrators must agree to the terms of reconciliation by a willingness to turn from the offensive behavior and accept the righteousness that is provided through and in Christ. The opportunity to reconcile will only last as long as the perpetrator lives on the earth.
Heb 9:27 And as it is appointed unto men once to die, but after this the judgment: