It a shame, and a disgrace that so little has changed. The reason we have to deal with Mr. Trump is that Obama was living proof that the world will be changing, and these people are doing all they can to stop it.
Sadly, I think that now if your father took such a stand, AG Wm Barr, US Justice Department, would have him arrested. The new version of the 2nd Amendment is for White People. The Black Panthers made that clear in the 1970s when they scared the shit out of America, just for wanting to be seen as capable human beings.