Point 4 " believe the random chemical reactions in our brain can be trusted"

This can’t be true, because if we were the product of unguided, unwanted and pure chance evolutionary processes, our thoughts would be nothing more than chemical reactions. The only difference with a bottle of coke would be that the coke has a better taste. Not even the complexity of our brains could be the reason for trusting our reasoning

Without the Creator, who made our brain and guarantees us the potential to use and trust our thinking processes, no man could trust his own thinking. The only thing he could do is to prove the right functioning of his thinking by using his thinking. Which of course is circular reasoning and therefore irrational.