I wish there was more potent ways to veto suggestions like this. Perhaps people should, in a democratic way, have the ability to ban representatives that are pushing these ideas, and many other, from politics for life.
But perhaps there's no way to make that "democratic".
Well, it's the core of democracy: the right of never ever voting for a given candidate again. What you are writing about is probably denying to some people the right of candidating themselves or even the right to vote. There are examples: one of them is Italy banning the fascist party after WW2 and the descendants of the royal family.
Excerpts of Provisions XII and XIII of the Constituton, easily googlable:
> It shall be forbidden to reorganise, under any form whatsoever, the dissolved Fascist party
> The members and descendants of the House of Savoy shall not be voters and may not hold public office or elected offices
I read that Germany banned a right wing party that recently won quite a large share of votes. I'm not sure about the extent of the ban and if it's a ban at all.
Even the original extreme proposal had wide support. The changes were offered only after Germany with Poland were against it IIRC. This is the state as of December 2024.