I guess that is why Jefferson and Madison founded the (Democratic-) Republican Party, and Adams and Hamilton founded the Federalist Party to support Washington.
You are knowledgeable enough to know that partisanship was greatly feared by the founders, and the two party system was acceptable, but with reservations precisely due to that fact. Adams particularly noted the need to vote one's conscience. That is what our system is designed for, not the hackneyed politicking and polarization of partisanship.
To the point that Republicans (singly) represent Conservatism, I will support them. As a party, I owe them *nothing*.