Everything we have, and are, comes from God. Everything.
We are made in his image, Genesis 1:26-27, and John says that there is nothing in the universe that was not made by him, John 1:3.
We have emotions, and can be happy, thankful, joyful. excited etc - because that is how God made us. Sadly our emotions have been affected by sin, so we can also be angry, sad, envious, frustrated etc; but we are emotional beings because God made us that way.
We have certain gifts and attributes - we can be creative, scientific, logical, precise, freethinkers, mathematical, musical, artistic etc etc - because God gave us those gifts, made us that way and in his image.
We have been given minds and the ability to reason, research, discover, debate and so on - because God gave us those abilities and we are made in his image.
We have also been given the ability to choose; whether minor things like new clothes, what to have for lunch, what colour car we want to buy, much bigger things like what job to have, and things that will affect our salvation and where we spend eternity. We have been made in the image of God; if he can choose, then we can too.
If God has chosen to give us the ability to choose, how can he do anything else but let us do so?
If God said, "repent, follow me and you will have eternal life, but if you do not repent you will perish", but the reality was that some people had been created so that they could NOT choose; how would it be fair that he pretended he was giving us a choice?
If Jesus said, "come to me", Matthew 11:28, but actually meant, "God has decided that some of you will NEVER be able to come to me"; how would it be fair to issue that invitation?
If we can choose anything, it is God who has given us that ability and chosen to do so.
We can choose to give it back to God and say, "Lord, I want to serve you and do what you want, and not what I want". If we make Jesus Lord of our lives, then I believe we give him permission to act as he sees best also. And there may be times when God keeps nudging people and presenting them with the Gospel until they feel they have no choice but to say yes; but i don't believe God will override someone's will and take away the ability to choose that he gave them in the first place.