Oh, it's the shorthand that threw me.
Basically, comments that seek to generalize, paint with broad strokes, etc . In this case, lumping together toxic criticism and constructive criticism together under one banner of toxic criticism. At this point, no criticism at all can be had as the door is closed to criticism of any kind, even if it may be helpful. And as mentioned, it doesn't help when producers are partaking in that toxicism by lashing out. Not listening to the toxic criticism is one thing, and nor should they. In the past, when the internet was not a thing, they weren't getting vitriol and were able to just do their thing. Now that's a bit more difficult as they're more exposed, but all the same, they should be able to control themselves better. The problem with this era of productions is that by shutting themselves out of any form of constructive criticism, both positive and negative, they aren't effectively learning about what's working and what isn't. It then starts to feel like any production is adverse to criticism, and no discussion can be had at that point. By that notion, they would be isolated within their own echo chamber, only getting reinforced by their own ideas that might sound great on paper but in fact be terrible in execution with nobody to tell them so until they air. And fans are supposedly to blame?