Though lawful, Republicans ignored their own 'rules' and just refused to 'seat' nominee (by not holding a hearing despite having almost half a year of time left). To be fair can argue wouldnt be confirmed even if they held a vote, but then why didn't they allow that? They then flipped those rules again when it suited their agenda.
It's not totally the same, but reads similar to me.
IDK if it's more scary that I personally believe Dems should exercise the same power to balance it back out. Though that would probably just cause a loop of reciprocating action towards chaos unless Dems can fix issues like the electoral college, redistricting, or add new states to balance the power towards more representational Democracy. Not many other remedies I can think of though.
The court in the US has huge power and they are doing similar things as in Poland such as rolling back abortion rights, LGBTQ rights (I argue this in the recent private school funding ruling and I wouldn't be surprised if they use more 'religious discrimination' to legally allow discrimination against the groups these religions despise).
This goes to your point about power of religion.
I would also add power of media to spread flat out lies (worse, that they are smart enough to realize what they are doing) to further their agenda. While not government funded, the Republican admin and Republican elected basically dictate and actually organize the coverage. Crazy to me.