Ah ok, that makes a lot more sense. Makes it a lot less clear why he was fired, but his side as told makes more sense at least!
replyYes, berating a coworker for being a fucking moron is unacceptable in corporate America.
replyThe truth is that in decent workplaces we've figured out attacking people doesn't generally get what you want, unless what you want is to have a tantrum.
replyCalling an idea nonsense is fine, calling it not profitable is great, and saying its a waste of time is a Monday. Attacking someone as a fucking moron is pointless, just fire them, deprioritize them, or move on.