The anonymity of the internet permits inert slugs to live out their dreams and fantasies, regardless of their lack of practical experience and real-world knowledge. One wants to tell them, "Get a life," but I suppose that it'd be too much of an effort for them to get up off of the couch.
It's important for your own mental well-being, to keep yourself from being sucked into disputes with these people. When one of these inane uproars begins, the best thing you can do is to (metaphorically) just walk away and ignore the idiot(s).
We recently had one of them here, and one of the Moderators tried to reason with him, to no useful avail. All he did was become more and more personally abusive. Finally, the Moderator had to evict him from the site.
I left another forum, a little while ago, because it seemed to be peopled mostly by disputatious fools, and was poorly moderated to control them. It just wasn't worth putting up with the meaninglessly-argumentative stupidity.
Try to remember Adlai Stevenson's pseudo-Latin motto: Non lesse illigitimatae te carburundum. ("Don't let the bastards wear you down.")