To give some more specific examples:
Liberal voters: We pay more for healthcare than anyone else! Can you use our money for Medicare for All?
Politicians:

Voters: Why have we been blockading Cuba since fucking 1962? Make it stop!!
Politicians:

Voters: Scientist are warning about climate change!! We need to take drastic measures!
Politicians:

Voters: ICE is killing people and racially profiling! It's a danger to us all and must be abolished!!
Politicians:

Voters: Stop killing brown people with our tax dollars! Pull support away from Israel!!
Politicians:

Leftists: I can no longer support the Democratic Party
Liberal voters:
