Why of course they do. A secular, open society means you can have whatever opinion you like, as long as it is peaceful, and you can participate just like anyone else. How else would you want it?
Modern activists seem quite odd to me. In the states, at least, you have the right for free and open political support to seek redress for your grievances. That is, something's not right about society or the government, so you use persuasion to argue your case to the rest of us.
But that's not what's happening. Instead it looks a lot more like economic warfare. Person A, B, and C are wrong. They must be punished. There's not the usual outreach of persuading others that we've traditionally had. It's much more about being in the right club.