Stigma Against Calling Out Supports
Before anything else, Im just pointing out that i DO realize there's a problem with blaming supports for everything, i DO realize that supports are almost always the scapegoat, I'm actually a support main myself, so please don't misunderstand this as me saying that everything is always the supports fault.
In recent games, I've noticed that because of the current "blame the support" attitude, some people find it in their right, to, as supports, become overly sensitive to everything. If you call someone out on not pinging missing by simply saying "pls ping mia next time", that should be perfectly acceptable, but in my experience, and I don't know exactly why, in around 1/4 of my games the supports react by raising passionate arguments about how supports are always blamed for everything in all chat, and then in some cases proceed to tell the enemy team to report you for being unsportsmanlike. In my honest opinion, I think because of all the issues with blaming supp for losses, they somehow feel entitled to turn anything into discrimination because of the role they're playing.