Soooo... you've basically admitted that you have no counterargument? Given that a response like "shut up" when presented with an argument is always invalid. Argument here meaning: a series of statements typically used to persuade someone of something or to present reasons for accepting a conclusion. And not the more common meaning. Although not to say the former can't lead to the latter but I digress.

In that case I wonder what type of cultures and main races of monsters would arise given enough time.