When will people realize ARAM is for fun? (Small rant)

I tend to lean toward playing ARAMs, over ranked - (as i have said before in my topics) because I enjoy the fast paced action of teamfights, and the requirement to work as a team rather then one person "lone wolfing" it to victory.

However - Is there a way we can put in the game mode "THIS IS FOR FUN" - too many people think Team Solo Mid is watching them for the upcoming ranked ARAM games. (which do not exist that i know of) and scream and yell even if they are at fault.

I get it - a out of position person can cost you team fight, but saying "EZ" after it, is just being a douche-bag. I often wonder why they allow /all chat in the first place. Rarely if ever do you see it used in game for any constructive talk, normally its the odd joke, or trash-talking. (maybe that is just my solo experience talking)

My question is this - Why are so many league players so toxic? I mean unless you came into the game a Master of it, (which is doubtful) why are you taking ARAM seriously? If you wanna be serious go to ranked, let try his blue build, let go AP, even though it makes her a one shot wonder - much like the olden days of league itself its a place to try out new ideas, in a fast paced game. Before "meta"builds came along and people started with the if your not building X while playing X champion. You need to go back to bots, or uninstall. That is just harsh. Why not say something like "Hey Tryn, you realize, that does not really help you cuz you have no mana" rather then "Stupid Nub, get gud or go bots" -

Let's just try and enjoy the game mode, that is what its for