I'm sure there is another side to this story. Nobody has an infinite amount of time or effort. If you're spending your time organizing protests rather than doing the job you're actually paid to do, you shouldn't be surprised that your coworkers and manager would be upset that they have to pick up the slack and try to replace you.
When I got back I was on the performance improvement plan, told any attempt to transfer would be blocked, and so I just stopped showing up. Never heard from them again. (I was there for 6 years and my last performance review was "Superb". Probably not the type of person they want to drive away. But it was time.)