Even during the American Revolution, there were instances of loyalists being abused, sometimes even lynched, socially ostracized, and generally made to feel unwelcome. Many ended up fleeing to Canada. In fact, the very term 'lynch' likely comes from the name of an American revolutionary who organized anti-loyalist action: https://en.wikipedia.org/wiki/Charles_Lynch_(judge)

That said, it's still a far cry from the scale and severity of violence seen in various later revolutions.