Oh, Barbra Streistand!
Let me affirm this: Any man, anywhere, at any time, can obey God and repent of his sin and believe on the Lord Jesus Christ. However, no man will ever, anywhere, at any time, obey God and repent of his sin and belive on the Lord Jesus Christ without being born again by the Spirit of God.
And NO man, anywhere, any time, any place, any how, any hoo, annie oakley has a choice to be born again or not be born again according to the Calvinists. It's all decided for them.
According to Calvinism, the unregenerate can do anything he wants until he is regenerated/born again with the exception of choosing God.
Once someone is born again/regenerated through no work/will/desire/choice/action of their own they can still do anything they want with the exception of NOT choosing God.
Lots of little choices, but the big one is out of our reach.