If a person is anti-dem, there's no way you'll convert them with logical arguments. Or with any arguments at all. But you can get them to vote anti-Trump.
Different strategies for different situations. And, from a European viewpoint, it sounds ridiculous that Dems somehow "deliver". From my perspective they are a massively lesser evil. But, in USA I would definitely vote for them just to vote against fascism. They might be stupid, but they are not malevolent. Trump is. (And stupid as well.)
You wouldn't be able to convince me to like a party as far right to as the Democratic party. I wouldn't like even the European right-wing parties, and they are – even in places such as Poland – to the left of anything USA has to offer. And if you tried spending your effort into making me actually think I might want more of what Democrats can offer, you'd be wasting your effort. I could vote such a party for what they offer less, but definitely not for what they offer more!