This dude maybe should learn to keep his mouth shut and play the game. Delete the blog, wipe the presence, reset the online identity. Until he finds a job, he could contribute to opensource to have something to show, or retrain in some other thing like a trade job.

Being loud on the internet and showing that you can and will be a problem for the company, even if you're fighting the good fight, will get you in trouble. Unless of course he finds a job with like-minded people.

My online identity isn't tied to my real identity. At least, I try hard not to because otherwise I'll have to add a disclaimer to every post "these are my views and not that of my employer". The more you give to recruiters, the more reasons they have not to pick you. Your online presence (if any) must be the cleanest, most professional that you can manage - especially if you're a minority.

People posting with their real names should just learn to STFU sometimes. Free speech doesn't mean "no consequences".