And they could lose a lot - their job first, which also means their house and their health insurance. Not to mention plenty of laws criminalizing most protest already, where you are bound to be caught on camera or via other digital surveillance, and a single arrest on your permanent record means no future employment, and missed payments on your credit history means no future economic prospects.
It's astounding you aren't already rioting! People in my country would tar and feder the guy who's responsible for that or anyone who doesn't want to change that.
An now all together:
🎼 If you're happy and you know it... 🎶