With all these sorts of things where they promise it'll only affect subset X of people, and then in the future once its been passed it's then changed/extended t

With all these sorts of things where they promise it'll only affect subset X of people, and then in the future once its been passed it's then changed/extended to affect subset Y in addition, I wish someone would suggest some way to just add a clause in, something like "This law is only to target X subset and if anyone tries to change it to affect a different subset of people, or pass a new law that extends its scope to a different subset, all such laws are instantly made invalid and dropped from the books". Or something along those lines. If they promise it'll only ever affect the "super rich", then encode that in the law and ensure us, by law, that's what it'll be. If they truly don't want to expand its scope further, then have a mechanism that enforces that. (Of course, this is a separate issue from whether it's even moral to target subset X in the first place, which I won't get into).