I think people are for surveillance under the presumption of it catching major criminals. But once it's introduced, they realize its main purpose isn't to nab murderers, but to punish them (the people who voted for it).

Surveillance everywhere means you can't park in a no parking zone for 3 minutes just to drop something off real quick. You'll get a ticket mailed to your door. You can't go 5 mph over the limit when nobody is around. You can't slow down at a stop sign without stopping for a full 10 seconds without risking being busted. You can't sneakily sample a grape before deciding whether they taste good enough to buy. You can't not tip a bad restaurant without them plastering your picture on the walls to embarrass you. You can't say a mean thing to an annoying person online in the heat of the moment. Half the people on earth cheat on their spouses while pretending they never would and anyone who does should be imprisoned, and soon they'll have their secret revealed and regret their words. You can't trip and fall in a goofy way without your video being a global meme for a whole month.

All these pop into people's heads and make them think "screw that" after at first thinking it's great.