I don't think that the RKBA movement has so much wedded itself to the Republican party or conservatism so much as that the Republican party and conservatism has tried to wed itself to the RKBA movement.
This is about spot on. The RKBA movement kind of got STUCK with Republicans. AND, until recently they took us pretty much for granted. After all, in the view of the political handlers, where else were we gonna go????
(note that while I use the terms Dem/Rep, Left/Right and Conservative/Liberal, I understand that the terms are all inclusive, and that the people involved ARE NOT. )
With virtually all the gun control coming from the political left, gun owners, who wanted to continue to BE gun owners had little choice (and no
effective choice) BUT to support the political Right.
most people are not single-issue voters
This is logical, and sensible, but I am not convinced it is actually correct. I think these days, most people decide which single issue is most important to them in their personal lives, and vote for the candidate that comes closest to matching their position ON THAT ISSUE, and essentially hold their nose about everything else.
As an example, I knew a woman who did firmly believe in the RKBA. Not firmly enough to get off her couch and DO anything about it, but neither would she do anything to support gun control. She didn't own any guns, but did believe we had the right.
This same woman also believed we had the right to smoke pot. She got off her couch, and voted for Clinton, TWICE, because she
believed he would legalize pot.
Even though she believed, it was pretty clear which issue was more important to her. And the fact that she was so wrong, is something I can still twit her about, to this day.
People may identify with a group, or a party, the will support a position on principle, but I think, when it comes down to casting their vote, in the privacy of the booth (or mail in ballot?) they will vote for what they feel affect them most on a personal level, and high moral principles be dammed, if they don't happen to fit.
No, not everyone fits this, there are people who go for the "best" (=least worst) overall, and there are the true believers who follow their chosen messiahs (person OR principle), no matter what, but I think, by the numbers, the majority of people are somewhere in between the extremes.