Sure. So how can it happen? Through history most of them have happened through people ignoring "power" more and more until it's no longer taken seriously, or no longer revered, has revoked its right to be considered "authority" in their minds, however you want to define the mass change of attitude.
And that usually breaks out through the exact sort of monkey see monkey do thing he's talking about. Being free is infectious.
We're seeing the beginning of the proverbial brush fire, I think. Trump's trying to play firebreak.