Here's the problem - we're at a disadvantage if we don't stoop to their level. Is it worth having the moral high ground if you don't do anything? I really can't say, and I certainly won't say that the other side is just bullshit.
If you step down to their level in this simplistic manner, you win short-term, but
lose long-term.
Republicans ain't gonna be holding the office forever, you know. Demographics are on the side of
Democrats - at least, it seems to be so at this point.
So, Democrats need to stay on the line that will give them more power
long-term.
And by "long-term" I mean "4 years
maximum", because Trump won by the eyebroves of EC idiosyncrasies even against the second most-unliked-person that has even run for POTUS that has depressed Democrat turnout by like
10% compared to Obama's one from 2008, with Trump only winning because he managed to
only lose 1 million voters in the meantime and because his voters were better placed on the EC map.
Sure, you'll have to sacrifice the interests of Democrat people in Democrat states for the next 4 years... but in the future, you'll be able to help Democrat people in
all states, both Democrat and Republican leaning. And you wouldn't have to go through the barrier of the state rights, potentially spending another good 4-8-more years trying to break through Republican deadlock in the Congress/Senate/House - which they're likely to maintain loooong after they'll lose the ability to make POTUS Republican because your election system is that fucking stupid.
This is how you
actually sacrifice the "moral high ground" in a useful way - by thinking long-term and using your enemy's winning momentum against them.