It doesn't matter if people in your family are not into Marxism when they vote for Politicians who are.
I was a Democrat for decades. I saw this coming back in the 90s and switched to Independent. It was obvious that the party - the DNC did not care about working class blue collar people. They kept shipping our jobs overseas. To sweatshops. Demorhhoids and Unions didn't care. They just backstabbed us and replaced us with Welfare mothers, then Welfare Bums, then Illegals.
There's only a handful of Populist Democrats left in Washington. And the DNC has largely disowned them.
