The real reason is they are Democrats in R jerseys.
Uniparty eunuchs who run as Republicans to advance the Democrat agenda.
Many of them ran as Conservatives, even Tea Party but learned as soon as they got to DC that instant and permanent wealth inheres in voting as the Chamber of Commerce suggests and not making the Democrats uncomfortable. The Democrats are, in fact, the ruling party. Democrats make up almost the entire upper level of the bureaucracy and leftists and go-alongs make up the rest. Congress really doesn’t have a whole lot of influence in the permanent government since they gave all that up.