We don't disagree that that's my (as someone on the anti-Trump side) only reasonable option.
Where we disagree is your assertion that that is the necessary and sufficient solution.
Those are entirely distinct claims.
People have won elections for a long long time without pragmatic solutions to real problems (case in point: 2024). You have basically zero evidence this is even a relevant point in elections whatsoever.
The actual necessary solution is entirely on the GOP's side. So long as they're in the throes of a cult of personality, then a sufficiently large part of the electorate will be immune to logic.
And yes: this is very bad. It is a deeply inconvenient fact, but the inconvenience of it does not render it less factual.
I don’t know what to tell you if you require research to explain that the intended function of the government is to serve the needs of the people, that this is the right thing to do, and that voters will respond positively if it looks like you will make an honest effort to do this.
It sounds like you would rather claim a lack of agency (it’s all up to the big bad Republicans) rather than even attempt to implement a pragmatic, common sense strategy. And this is why the Democratic Party finds itself rudderless.