Gorsuch is the perfect example of it. Nobody questioned whether or not he was qualified, they protested the vote based on Garland first, and then on whether he would side with the "little guy". Never was a question raised about whether he was qualified and yet the democrats refused to vote for him unless they were facing political ramifications. While I didn't like McConnells tactic in regards to Garland, he knew that republicans wouldn't vote on party lines and it turned out that he was correct about letting the public decide. As we all know, the Cavanaugh deal was a total political sham and he only received 1 vote from a democrat. The precedent has been set, and Republicans will respond in kind in the future, so unless democrats get a super majority in the senate they will never get a nominee confirmed.
It's kind of crazy to think that less than 30 years ago RBG got more than 90 votes. I'm sure that republican senators had major problems with her ideology but they voted on whether she was qualified. Actually if you look back over the last 70 years, democrats have been much less likely to vote for republican nominees and their protestations were always based on political ideology or personal reasons.