>>512863676 (OP)
We let people who never surpassed the stone age into our post space age civilization. The only thing humans need to be smart enough to do, is sharpen a stick or chip a rock until it's sharp, or throw something because we don't have built in weapons to hunt with. That's ALL shitskins are capable of mentally, their brains never surpassed that basic concept that many monkeys have begun to engage in.
Beaners never had metal tools, so no they didn't carve all those stones. Look up the date of Spanish arrival and the date their "pyramids" were built. OOPS. They sliced each other up with obsidian stone and ate the flesh because they were too dumb to domesticate animals and too lazy to hunt.