The EU parliament is not a real parliament since it can't choose which laws it has to vote for, and in negociations ("trilogue") it doesn't hold the pen.

Basically, it can oppose new legislations but can't retract old laws.

> seems to me that "no and don't ask again" should be a possible outcome of a vote on proposed legislation

It can't be. At least not in a legislature. Defining what is the same question is itself a political question. And past legislatures being able to bind future ones is just a futurecasting veto. A single crap election could poison the pool on a raft of issues for generations.

The proper way to do this is through constitutional amendments. The fact that these are too difficult to do, currently, seems to be the bug.

Ah, but if they were easier to do, would they be as effectice at stopping "bad" legislation?

Ironically, just like many software users, the EU Parliament is not given the option to say "no", only "ask me later".

Anyone who’s ever been unable to dismiss a nag and forced to defer via "Ask me later" knows the feeling of powerlessness and disenfranchisement deliberately planted by those making UX decisions. .. or the EU constitutional framework.

What you propose is totalitarian and not democratic.