> legislation is the only thing that prevents it

I strongly agree. There's even the argument to be made that if no legislation exists, even if you're anti X, you might get incentivized to build a company for X just so it's not a fan of X at the helm of the top company for X.

Blaming it on the employees is pointless. It's the law that should dictate what's allowed and what isn't and if the lawmaking or enforcement isn't working you probably want some "good" people in those companies.