Actually, I don't have a problem with that. I'd have expected Republican Senators to do the same with Breyer and Ginsburg. This nonsense about qualification being the end all and be all determinant of whether you vote to confirm is simply stupid. If you disagree with the way a judge interprets the Constitution and the law, then a Senator is perfectly justified in voting against him, regardless of his "qualifications". That's why elections matter.
I do have a problem with it. If we continue down this path, our courts will become more and more politicized, which is contrary to civil society and Constitutional principles.
Elections settle these matters, and great deference should be conferred upon the president's selections... to the victor go the spoils.
Instead, the RATS are acting like spoiled children. It's not good for the country, and it's not good for our troops overseas, either.