I'm just replying on the topic of toxicity more so than the contents of the video.
Toxicity isn't a unique trait in TF2 community so I don't think it's very clever to look at it at that specific angle. What can you do honestly? Why is there so much evil in the world that seems to be unstoppable? Why do people choose to be bitter and avenge in a never-ending cycle of suffering rather than forgive and move on? Why are we focusing more on what differentiates us from each other than what we have in common?
I'm not saying we shouldn't do anything, but we're not the first people in the history trying to figure out how to get along better with other people worldwide. Words are just words, we're responsible for our own feelings and whether they get hurt or not. We can try to limit freedom of speech, make having a certain opinion about something or saying something a punishable offence so that someone doesn't get hurt, but where does that get us?
I rarely hear people say they specifically enjoy playing with toxic people or that toxic behavior is approved by anyone in the community. Even if there are toxic circlejerks, well I mean who cares? If toxicity is what unites them, why not leave them suffocating in their negative bubble?
Now while I understand no one working in the production enjoys getting shit, they're still appreciated for doing very valuable work that no one complaining bothers to do. You're still at least trying to actually do something to keep the competitive scene going on while others complain and do nothing. Though in tf2 production crew you don't get paid so you can only wonder what motivates you. If Valve ever supported tf2's competitive scene, I think the people working on the production would be getting some reward on top of the shit they get.
I guess if you work on production you gotta ask yourself "Why am I doing this and is it worth it?" while we as a community might want to think of some sort of way to portray the gratitude toward these people who currently have to look at that question. How?