I mean, at least online this is pretty true. It's easier to be an outspoken alt-right racist and bigot online right now than it is to be an outspoken progressive. Brainless drones will flock to and promote every video you make, anyone who criticizes you will be harassed by a sizeable group of zealots - all for fighting "the good fight" against those "damn SJWs."
Not sure about this, I think it goes both ways. Each side is equally active and full of zealotry. I don't think it's easier for one or the other - although intuitively it seems easier for the alt-righters.