I know a long time ago being a democrat or republican meant almost completely opposite things. I can't even figure out if I'm discussing the entire timeline of American history, or within your lifetime since Reagan. Though I do see the basic platforms of either party as fairly consistent and they have been for a long time. Call it a conflict of reality, but if I shared yours then I guess thats means I would agree with you, and then we could high five.
I remember (and it's still not far from the case) that the two parties were almost entirely the SAME thing.
The boundaries were not just the law, but the traditions of where society fell. It was a pretty narrow range of disagreement.
Conservative Democrats sat to the right of liberal Republicans on most issues. Compromise never involved bending very far.
Reagan moved that needle, and the Democrats (eventually) followed. It kept drifting rightward. But, the consequences
of that move, on many planes, made it clear that it had been dangerous.
Now that the Dems have broken free of the constraints of the center that they helped allow to drift,
they've accelerated in the other direction. I'm not sure they've made up all the ground the right took,
but they've certainly moved as far left of where things were in the 70's as the center moved over the
past few decades.