It's remarkable that you can have such a strong opinion based on thin air.
Beginning with Nixon, 12 of the last 16 SCOTUS appointments have been made by Republican presidents. Carter got none, Clinton 2 & Obama 2 so far. If the Court has been ignoring the Constitution, it's been Repub appointees doing it.
It's the luck of the draw & Repubs have exploited it to the max. Now, when luck turns against them, they act like they're entitled to good luck all the time.
https://en.wikipedia.org/wiki/List_of_Justices_of_the_Supreme_Court_of_the_United_States