It’s not that you can’t achieve the goal, it’s that you can’t force people into it by making their daily lives worse. Or at least that seems like that would be the least effective political strategy.
Personally I work remote, so I would probably just go to the city less if it were made more inconvenient to do so. This has already happened to an extent. No free parking? I’m not going unless I have to. Public transit as it exists isn’t a good alternative either. It’s slow and I don’t want to be harassed by addicts at the bus stop.
Any plan that involves coercion isn’t something I’m interested in.