That's something I'm really worried about, especially when SV is pushing it. And it is difficult to prove that research is unbiased.
One of the commenters of your post says "If we legalize it we can better research it". Allow me to be rude -- this is BS. If we follow this logic we should legalize pretty much everything!
I think it is polite to be rude to such dangerous thoughts. Downvote me as you see fit.