Welcome to the club. Of course, it happened a good deal earlier for me.
My natural inclination was, and still is, what used to be called a "liberal Republican", or maybe "progressive Republican." Social (mostly) liberal, strongly fiscal conservative. Fiscal conservatism went out the window with Reagan. All decrying "tax-and-spend" Democrats, while running up massive deficits to give money back to those who needed it least. And around the same time, they brought the racist southern Democrats over en-masse. No fiscal conservatism, no social progressivism. Screw them.
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Speaking of "a good deal earlier".
The exodus to the GOP of Dem politicians who catered to the racist, bigot, hater demographic began in the South in the early 60's (late 50's) with the events leading up to the Civil Rights Act, because they knew their base wasn't going to take well to things like integrated schools and businesses, much less minorities as management.

. The The GOP in in what were considered "Southern" states was toothless and ripe for a coup. This was the foundation of Goldwater's Southern Strategy. Nixon quickly climbed onto that bandwagon.
Politicians of similar mindset in other regions followed suit with varying degrees of alacrity. By the time of Reagan's Presidency the party jumping of opportunist Dems to the GOP had pretty much slowed to a trickle, because there were few Dems left who could stomach what the GOP had already become, and most who saw clearly the disgusting travesty it was heading towards.
Fiscal conservatism by the GOP, such as it ever was, became little more than lip service probably around the time of Eisenhower, whose more than prescient parting warning about the dangers of the military-industrial complex were quickly and thoroughly ignored by the GOP politicians who inherited his party but not his ethics.
The GOP has been sliding down this razor blade for over half a century, since I was in elementary school. They've just been picking up speed. I fervently hope that they are sliced into the cesspit it ends in before any of them can do much more damage.
In my opinion few if any of them are salvageable.
None are to be trusted after the crap they have tolerated so far.