The UK has been arresting people for saying offensive things for a long time. It’s just that most of the victims were on the right, and most people on the left were cheering for it. Now that the laws are being used against their side and their causes, they’re sad and outraged. It’s a tale as old as democracy: people don’t care until it materially affects them. Every time we give up rights or give governments more power, no matter how justified we think the cause today, those powers will eventually be turned against us.