>What do you think this should look like?

My honest answer that I know is impossible:

Targeted advertising needs to die entirely.

I don't think it's impossible. If it's too hard to do something legally, then the solution is don't do it.

Like, for example, running a gambling operation is very risky and has a high compliance barrier. So most companies just don't. In fact, most B2B won't even sell to gambling companies depending on what exactly they're selling.