Bigotry is wrong on both sides. Seems odd to make it partisan when 'both' sides are spewing hate. Most of us just wish either extreme would pack it in.
I believe that pointing to a location and saying “look at what policies X and Y have done, let us adjust our messaging and policies in accordance with this new information” is perfectly fair. Characterizing the locals in those environs as inferior or fundamentally incorrect is morally wrong.
So in this regard, desparaging california’s policies is completely fair. So would bashing on say, Kansas. But calling California the home of “libtards” or calling Kansas full of rednecks would not be fair.