You asked for an example, and now you're moving the goalposts? And what does "people of all colors are in jail for drug crimes mean?" Surely, you not saying that for something to have an institutional effect, it must only effect those of a particular group. That's like saying "well, I took a white person to jail once on some bogus charges, so that means you can't call it racism when I tell you I locked up 100 Latino guys for the same reason."
"institutional effect"? I think that's a stretch. I mean, even my "planned parenthood" snark isn't institutional. I think you have a lot further to go to say statistics prove a causal relationship.