You have to remember, Reagan didn’t really piss off the majority of American Demnocrats, in fact MANY voted for him.
Different situation in Britain, where Thatcher put the dying coal industry out of its misery, and thus had her time in power marred by harsh conditions for those who had previously worked in the defunct industrial and mining sector. They truly hated Thatcher, voiced themselves through Labour, and the meme has sort of continued as a pop culture thing among left wing youth that Thatcher was a Hitler-esque character.
‘Hope they all enjoy their islamist paradise.
“How now, sot!”