How about Republicans actually try and win an election fairly and by a system that has been in place for centuries rather then try to alter the rules because the demographics are not favoring them and they are doing little in the way of changing to win on a national level ?!
I never remember Carter Mondale or Dukakis coming out with this after they lost lopsidedly.
The Republicans could change tomorrow if they wanted to but what about their current base of support? Their current base of support is very conservative(juts listen to conservative talk radio callers) so it would be hard for them to really move their platform at all. Just listening to Conservative Talk Radio callers most of them basically haven't changed with the times they just stay in their time that they grew up in as a teen/early 20's. I have listened to some Conservative Talk Radio(Mark Levin, Inga Barks) and they haven't changed with the times on a lot of things. They didn't care if Obama's Executive Order on Immigration passed even if costs the Republicans Hispanic Votes in 2016.