If you're trying to be thorough, though, you should probably mention that Reagan's first selection for that seat was controversial because of his involvement in the the post-Watergate "Saturday Night Massacre," as well as the general suspicion that he would try to reverse Roe v. Wade and other civil rights-related rulings of preceding decades. Reagan's second selection withdrew his name from consideration before even being nominated, so I'm not sure why he's even relevant here.
I get that you're trying to make a political point, but there's simply no evidence that Democrats would have behaved like McConnell's GOP (perhaps more aptly described as the post-Gingrich GOP) did in 2016.