Putting all the civil rights issues aside for a moment, what the GOP has done in the past 2 years with the Supreme Court is a completely unprecedented party-first power play. There is nothing remotely similar to:
1) Refusing to vote on a nomination for 10 months.. and the appointee was a left-CENTRIST (leave it to liberals to compromise upfront and get screwed).
2) Make rule changes specifically so they could force through subsequent appointees without a filibuster and unbalance the court as much as possible as quickly as possible.
The GOP is not playing at democracy, they are running a slow moving coup to install a conservative America, and fueling it on the backs of culture war.
The bottom line is that the GOP has a playbook for "winning" at American politics. I consider it dirty politics, anti-democratic, and in some cases downright unconstitutional. Their base considers it smart, tough and justified.
1) Stoke your base in red states with cultural issues. Abortion, Supreme Court, immigration. You can win elections and lose the popular vote by taking advantage of the electoral college. Cast all democrats as elitists and wannabe socialists.
2) Pour money into winning state seats, so that you can gerrymander districts. Now The House has more GOP seats than expected - electoral strategy all over again.
3) Take ownership of patriotism - military, MAGA etc when you have no particular moral authority or stronger record here. Example: funding for the VA.
4) Exploit every loophole in a partisan manner. Anything Obama touches is automatically rejected. Refuse to confirm Garland. If you can vote to change a rule in your favor, do it that way.
5) Unity. No matter if it's a child molester, a philanderer, a liar, an ex-Democrat, always act as a blockade and keep your own people in office.