You’re misusing the law of causality:
Plus, you’re peeing on your own shoes bud. If you say that nothing can violate the law of causality and then turn around and say that God needs no cause, then you’ve just defeated your own premise.
Either the law of causality applies to everything or it doesn’t. Which is it?
Plus, if you’re saying that intelligence can only cause other intelligence, where do new ideas come from? Wouldn’t that just be one person applying reasoning skills?
The point at which one monkey started using tools on his own is a step forward in intelligence, before him no monkey used tools. Where did he learn this skill?