It's not about the minor offenses of uninteresting people, but what happens because a change in political orientation makes you suddenly interesting. Even more so when AI automates this: Dear computer, we just got some ruling to remove citizenship of people that were not born in the country if they commit event the stupidest offenses: Go look them up.
It makes no sense for the authoritarian to anger everyone at once, but if you just convince people that complaining is bad for them, or expressing negative affect against the government, they can ge much done with little, and it doesn't take that much surveillance. We are already seeing governments that pursue their enemies to the fullest extent of the law for things that are, at best, dubious. Automation just makes this easier to do.