The connection your trying to draw here between liberal activism and the current slide to an authoritarian government in the US makes no real sense.
Yes, there have been problems with left wing activisms depending to much on liberal judges to achieve ends that would have been better achieved through politics. But that has no bearing on the current problem, there is no substantial connection between the two. The only point of connection that I can see at all is that the left have at times increased police power to temporarily arrest people in abuse cases.
But it is the reactionary Republicans that have always sought to increase police power. The whole obsession over child molesters and pedophiles is a right wing obsession, one picked because it's a crime so heinous that people don't object when the police abuse the law to catch the guilty. It was the right wing that wanted to extend police search authority at every turn, to give the police permission to break the law to catch criminals, and to allow the police to use lethal force against everybody.
It wasn't the left that used the FBI to harass American citizens, it wasn't the left that used the CIA to overthrow foreign democracies. It was the right that grossly abused those agencies. It certainly wasn't the left that had the FBI infiltrate left wing organizations and then had those infiltrators encourage the organization to become violent so they could be arrested and jailed.
The only way the Democratic party can be held responsible for the current mess is the way that they have caved in. They haven't even tried to protect us, they just rolled over and said, whatever the president wants the president gets.
Jay