You can change your mind on a lot of things. The style of clothes you want to wear, the toothpaste you use, even the toilet paper you use. But to me, changing a position on Amnesty (actually in my definition - giving illegals citizenship somehow) is like a decision to change one’s religion, or one’s views on something like abortion. It is a fundamental cornerstone of our sovereignty in my opinion.
Further, uniparty or not, [No] Amnesty is my requirement for a candidate. If there are none of them who agree, I stay home, likely with a lot of others.
People change their minds on major issues as well. I’ve personally changed mine on infanticide, religion, and political affiliation (or lack thereof) over the space of my lifetime.
As for November 2016. If amnesty is tour make or break issue, I’d start making other plans now. Nice weather for a vacation.