Why is it so hard to find a player to support who actually isnt an autofilled troll

Because maining support means watching your team die of greed in the enemy base even though you've being pinging them to back off. Further more, it means watching them do this 20 seconds before Baron spawns. Even though you've been pinging the spawn timer every 10 seconds for the last minute and warning "Baron up soon, please don't die". After that you curl up and cry in the corner because you're just a squishy Zilean and the enemy team has a Rengo who click jumps you for all of your HP.

Because most idiots feel they have to kill and snowball to carry and don't appreciate the importance of a true support playstyle.

I should probably start supporting again, just so I can join that 10% again.

Whenever I have an autofill support in ranked as an ADC main or someone who doesn't play support as much, 9/10 times, my team loses. I wonder if people who's in favor of autofill will listen to the reasons or watch videos of why autofill is a bad idea. I'm legit losing games/LP because of autofilled teammates. Probably not. They'll pull the "you should learn to play every role" card.

Just find yourself a premade on the boards thats how I found an decent adc main last season

I play Alistar for a reason when I autofill as support: as long as my laner focuses on farming and the occasional harass, my passive can sustain amd my kit can peel. It's when I get people who can't read when I type "farm to proc my passive" and try to all in early.