You are either completely uneducated on world history or willfully ignorant.

There is no limit on how far back the clock is allowed to turn.

Things that will be targeted:

* homosexuals (often the first)

* non whites

* interracial marriage

* voting rights

* voting right for women

* women’s suffrage

* education for girls

* no fault divorce

* freedom of speech

* freedom of mobility (like to leave the country)

* trade unions / labor unions

* Freemasons (Oddfellows, etc)

* practicing a religion other than Christianity

* environmental regulations

* public lands, federal parks

* etc etc etc

Look not to China or North Korea for the operating model but East Germany during the Cold War. There was a massive surveillance operation in place then and technology has only improved.

Freedom is not guaranteed and for most of human history was not a goal.