Just because a bunch of people can do some witch hunting on twitter doesn't make it a lucrative and safe career. Twitter slacktivists aside, who do you think currently has an easier job - people fighting for civil rights, or people who are fighting against them?
One side in this fight uses water cannons in freezing weather on unarmed people. The other gets hit by water cannons in freezing weather. One side is untouchable. The other gets routinely beaten, harassed, and arrested - legally or otherwise. One side has killed ~50 people over this year in a series of hate crimes. The other... Punched a few nazis.
Or hell, if you want to talk about twitter slacktivism, have you seen how much abuse feminist writers, BLM activists, and LGBT people receive? You may claim that some martyr or other of the conservative sphere received similar levels of censure, but I assure you, the people on the other side of this are not having easy, cushy lives.