IS the player base dominated by PC whiners?
When a simple statement of advice to perhaps help someone improve somehow is toxic. One of the most overused words in a typical LoL player's vocab. It's rather sad that everything is considered toxic within the player base. Sorry but if you're trying to fight the other laner in mid constantly without even trying to farm and someone says "you should try playing back a bit focus on farm and trade when it's most appropriate" and is met with complete irrationality by the other player.
Personally I don't bother giving advice anymore, it's not worth the crying, but I seen a teammate trying to help a dude out by giving him some pretty constructive criticism and him being told off and being called toxic is so stupid.
I wonder if riot can be held to blame? I don't know who is but I know Riot pretty much thinks everything is toxic and advocates against toxicity to an extreme degree which can sometimes be considered a bit over-the-top. Perhaps it's not riot but the player base it's self. I don't know, I think we should take a breath and truly try to understand what it means to flame someone and be toxic. Difference between Tyler1 toxic and hey I'm just giving you some advice chill the F out. Food for thought.