I believe man does have the freedom to choose. Just not in the willy nilly way that you are portraying. I'll reiterate here that man cannot "just decide" to be saved, as you tend to think we believe. Man can only respond to the drawing of the Holy Spirit, and it is only then that he is faced with the choice to accept or deny God's grace. It is not just a "oh, I don't want to go to hell, so sure, I'll get saved" kind of thing. He first has to fall under the conviction of the Holy Spirit, feel the draw of God on himself, and then decide.
This speaks a lot here. I don't see Calvinists as adversaries. I'm sorry that you see non-Cals as adversaries. I see brothers who both believe in the saving power of God, but who disagree on the method in which God uses to distribute His grace.
Again you use the word adversary. I'm sorry you feel that way. But, there is a third option. I believe that God does intervene, and when He does, then the choice is made. For me, it was really no choice. I knew where I was headed if I didn't accept God and I knew that even though I was a good person who grew up in a pastor's home that I had been hanging on to a false confession of faith since I was a child. I had been dealing with God's conviction for years, afraid to die because I knew I'd go to hell, but afraid of what people would think if I, a soul-winning, song leading, bus working, about to go to bible college teenager came forward and admitted he wasn't saved. But one night at the Triple S Christian Ranch I decided that I not only didn't want to go to hell. I wanted to serve God and accept His gift and live for Him.
This is one reason I have a problem with irresistible grace. I resisted for years. I knew the truth, and didn't accept it based upon my pride.
I agree.