I main support and 4 games in a row get we get our ADC ffed and we lose to some neckbearded extra-chromosome having half wit. Seems like only duo Q with someone skilled is the way to climb ladder as main support.
There are 10 types of people in the world: those that know binary and those that don't.
It's a lot LOT easier as an aggressive support, for sure.
My win rate in Ranked is better with Leona than any other champion I own, just for example.
Leona/Taric/Lulu are the holy trio of support "carries", with Thresh and Blitz being great whenever they're not banned. So never.
See, therein lies another problem. I've laned with so many ADCs that can sort of make use of my being a good support and go 5/0 in lane, but when teamfights roll around and I can't hold their hand the whole time they suddenly end up being 6/9 because they have **** mechanics. True story.