Fine. Then don't plot revenge on one's employer. Accept the consequences of one's own actions.
Life gives you back what you put in.
I think you've mistaken me for someone else, I never said anything about "getting revenge" on the employer...
Just how to be a better, more anonymous asshole.
The point is that it's his behavior that got him in trouble. I suggest he modify his behavior or accept the consequences.
In other words, you want to control his thoughts because /you/ don't like them. That's bullshit.
I say he can hate immigrants, it's a free country. However, one needs to understand that an employer is not going to risk their reputation and money if that kind of ideology reflects on them, they're going to can folks rather than defend them.
You have to protect yourself and keep your 'private' opinions separate from 'work' related [aka real] accounts regardless. It's not even about being an asshole or not, it's just common sense. How many times has the mob gone back through a person's social media account and pulled up something that's all of a sudden relevant? The whole #metoo movement is a good example. If the internet had existed en mass in the 80s, holy shit would people be getting taken out by stuff they'd said about sex for power and shit back then. Societies "morals" change, and these days it can change in minutes thanks to the speed of information with the internet. The internet doesn't forget like people do, it's gonna be there, connected to your name forever, and if societies "morals" change to make your statement "controversial" somewhere down the line, then you're fucked and there's nothing you can do about it.
I'm telling you folks, you must use an alias or you are asking for trouble, period. IF you've made the mistake and already used your "real" shit on some stuff, go delete it all (FB, Twitter, etc.) delete it now /before/ the winds of societies focus changes again and catches you. IF you're going to have a "personal" "real" account, only use it for like pictures of your kids for your family and shit like that, don't talk about politics.
I'm waiting for the entertainment in about ten years; lets see how many of these lefty fruit loops can't get decent jobs because of the shit they've said on FB, you watch how many of them get nailed by a lawyer for crap they've said.