Many conservative care more about immigration than anything else. The number of conservatives like that is growing rapidly as America turns third world.
In the not too distant future, the GOP will either become an immigration restrictionist party, or it will split and America will have a new right wing nationalist party.
This is only the beginning. Few right of center millennials have any loyalty to the GOP. Older conservatives are getting fed up too. If the country shifts much further to the left than it is now, there won’t be anything left to lose if the Democrats control the entire Fed Gov.
I live in Southern CA and illegal immigration is one of my biggest issues. I voted for Prop 187 and would do so again.
I am all for building the fence and securing the border. But the idea that Trump is going to get the Mexican government to pay for something which the US government should have been doing all along is simply preposterous.