Why are players so Toxic on Riven?

And by on, I mean towards her. I've noticed something. Some Rivens are Toxic, a little more than other champions I see(possible bias). However playing Riven, everyone is toxic to you. People wonder why Rivens are Toxic but literally every game I play her, whether carrying or failing or cutting even. People call out every play you do, watch your lane more than their own. Find any excuse to be pissy and rude towards you. Call out every stat you have on the board from CS(Even if you are against a counter) to KDA(Even if it is because you have been playing safe as to not feed Darius). Junglers act spiteful if late game you take a camp or buff like any other laner would late game. And if you do a lot in a team fight but manage to die anyway as the team fight is won? Everyone pings "?" on you. Like... Maybe before people talk about a certain champion being 'toxic' they should consider how they are treating that person. Because I caught myself nearly doing the same to Yasuo players who had literally said nothing wrong and done nothing toxic.

It was a funny joke, but at this point it is damn near 'discrimination' against anybody who thinks maybe those champions look cool, or enjoys their kit design. And that is real toxicity, not your Riven failing an engage because they aren't BoxBox.