Dems consistently co-opt radical ideology, albeit in a neutered form, to try and guilt left-leaning liberals into voting for them, deliver on none of it, and still blame the resulting apathy and antipathy on "Those Damn Leftists™"
you GOTTA vote for them because:
- the other guy is worse and if you don't vote against him you're actually voting for him
- sure you asked for 100% of a thing, they only promised 20%, and they delivered 0%, but the fact that they deigned to pretend to care to court your votes MEANS something
- if you don't buy into this false incrementalism, you're a radical purist who wouldn't be happy with ANYTHING