We had a law. The Citizens United ruling by the Supreme Court invalidated it saying the First Amendment takes precedence so we’d need another Amendment limiting speech in politics, which is complicated. I believe we already have laws about foreign money in politics, but we have extremely weak enforcement for it (and weak enforcement of other political laws in general). If we made stronger laws requiring PACs to report where all of their funding came from the current Supreme Court would likely knock it down saying anonymous speech is also protected by the First Amendment.
I have a Kickr Core connected to Zwift, which is nicer than just spinning endlessly since it’ll adjust the resistance (unless in ERG mode). But it still gets boring and it’s not like riding on the road. My ass still takes a hit. Standing once in a while helps, but I think the idea another poster had of just taking occasional breaks is best.
I’d like to get a rocker plate, but even there I suspect for longer rides breaks will be needed since you just don’t get the same movement as out on the road.