Your definition of "the weirdos" must be pretty broad, because I don't see that. (Well not from non-RW media. The RW media *looooves* to focus on the left's weirdos. It's why I find it annoying when "centrists" who claim not to support the GOP and its policies focus on them too.)
The reason I focus on that, is because
A) that's where the most notable shift has happened recently
B) the left started moving in the wrong direction on that, whereas, contrary to what some pundits may claim, the republicans have actually moved toward the middle on several issues.
The GOP has always had a certain level of pandering to an element of their "more extreme wing" since the 80's. (The Jerry Falwell days)
The difference back then was:
While the GOP politicians would "Yes sir, we'll do anything, just don't turn the evangelicals against us" and would bend a knee to Jerry Falwell, Dobson, etc....
Bill Clinton would tell the Jesse Jacksons of the world to pipe down, one notable example was when he was making an appearance at one of Jackson's events and famously said (in response to what someone else had said): "If you took the words 'white' and 'black,' and you reversed them, you might think David Duke was giving that speech."
Obama did the same at one such event where, when the rest of the theme of the event was "talking about the way white people are holding everyone else down", to which Obama said: "if we are honest with ourselves, we’ll admit that what too many fathers also are missing — missing from too many lives and too many homes. They have abandoned their responsibilities, acting like boys instead of men."
Now, the two parties seemed to have reversed their trajectories on those sorts of things.
Republicans are less beholden to far-right evangelicals than they were in the 90's...and Democrats seem to be more beholden to the perpetually offended crowd. (to the point where they'll even torpedo their own campaign before risking offending them)