I like to play for fun.
So do I. The problem is you're not playing when AFK, and you're dimmishing the fun for the rest of the team you burden when doing so.
Yes, because the bathroom is not in our control and it a necessary thing. I've gotten kicked because I was inactive when I went to the bathroom. It was like 20 seconds.
You got up from the computer, ran to the bathroom, did your thing, washed your hands, and returned to the PC within 20 seconds?
I find that hard to believe; more so, that someone would identify you as AFK, begin a kick vote, and have enough people vote to kick you within 20 seconds.