Not that I am supporting either camp but let me play the neutral "Devil's Advocate" if you will in order to prove my point:Man has not faith of himself--God gives the faith. Man is infinitely depraved. God is infinitely holy.
Acts 17
30 And the times of this ignorance God winked at; but now commandeth all men every where to repent:
31 Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead.
A simple straight forward reading of this passage gives every indication that God expects "all men every where" to repent else we have a God who is going to punish folks for not doing (repenting) what they are not able to do.
In addition this passage indicates that God not only expects "all men every where" to repent but has also says that He has supplied them with an assurance which they are unable to receive being "infinitely depraved".
When I tell one of my children "clean your room" or else I will punish you" I expect it to be done because he is able and I'll do the discipline if he doesn't. If however he were a paraplegic confined to a wheelchair, I would never tell him in the first place.
I could see the calvinist point of view had this passage qualified those who are to repent as believers but it plainly says "all men every where".
HankD