as an American I will note you are breathtakingly incorrect about there not being policy differences between Republicans and Democrats, and the "cave in" over the government shutdown is strictly one of tactics, not ideology.

> many Democrats do support the Trump administration policies on healthcare

citation needed

> Or how the core Democrat party

The phrase "the Democrat party" is a well known right wing slur against the Democratic party; this term is used exclusively by right wing activists and party members and you'd only see it by reading lots of right wing sources.