He condemned, among other things, those who are against abortion and gay marriage (many Republicans and even Democrats in the recent past).
Right, but "many Republicans" aren't "every single Republican" (aygart's term).
It is the term to be able to pin every negative they want into and then use it to smear all Republicans. It changes meaning depending on the smear.
I see it as davka trying to NOT smear all Republicans. It's an attempt to discredit just an extreme segment of the current Republican party.
Using a campaign slogan that was supported by tens of millions of Americans into something like Biden did. Is a bad aka wrong thing to do. Full stop.
I'm sure that there's a certain percentage of Trump-followers whose rhetoric and behavior you would characterize as extreme and not representative, eg, "Hang Mike Pence", Charlottesville, Dominion, "Trump is the duly elected prez" etc. What term would you prefer be used to refer to these people?