That's an interesting variant of a no-true-Scotsman fallacy. So, sure, it's a hypothetical ticket of a Republican running with a Democrat as VP, both of whom generate interest from significant portions of their respective voting bases, but they're the
wrong kind of Democrat or Republican? The nasty, divisive kind that not everyone in the bases likes, who runs on the wrong issues - right? As opposed to, say... AOC (progressive fringe wing)? Mitt Romney (RINO)? Ted Cruz? Tulsi Gabbard? Joe Manchin? Yeah, you're right - they aren't mainstream, or they're divisive themselves.
Mainstream figures like Joe Biden are probably the ones we want running because lots of people want him running - right? Oh, wait -
apparently 72% of Americans don't want Biden running with 78% of independents, and even only 52% of his own party wanting him to run. What does this mean? The current POTUS - as mainstream as it gets - is such a divisive figure that a vast majority of Americans don't want him running again. So when you talk about figures like Trump and RFK being divisive figures who aren't the right kind of Democrats and Republicans, you more or less ignore that the list of non-divisive figures who have any heat behind them at all is vanishingly small. The alternative is, itself, divisive, and there is no mythical "
appeals to most people in both parties" candidate.
The fact that you come out in the face of a potential Repub/Democrat joint ticket and say "
No, they're not TRUE Democrats/Republicans - they're divisive! The run on the wrong issues!" and ignore how significant a Repub/Dem ticket would be in this divided age says more about your own politics and biases. You are likely a product of the divisive "basket of deplorables" style rhetoric that is becoming so normal - its primary target and customer, if you will, that will vote a certain way if you're just cajoled to hate your countrymen a bit.
I'll stick to my original assessment... If I have a field of assholes to choose from - all candidates I don't like - then my preferred running ticket would be one which crosses the aisle in a paradigm-shifting way rather than the assholes whose strategy is to say "
We must unify - against the bad people, who are between 20% and 50% of the country!" But then again, I'm Canadian - this isn't really my affair. I have my own "
Vote for me because the other side is EVIL!" politicians to worry about.