Perhaps "life ruining" is an exaggeration but losing your job for discussing the effectiveness of different protest tactics is an insane knee-jerk reaction made by the people who fired him. He clearly agreed with the movement and ostensibly wanted to help it be as effective as possible.

> in the wake of a tragedy he seemed to only care about getting blue votes

That's a baseless statement. I would argue that caring about getting votes means he cared about trying to actually help the movement capitalize on its energy at a critical moment. Right or wrong, if people can't even discuss data-driven strategies for your movement without being shamed and ostracized, your movement is dead in the water.