Understanding How I "Support"

The following are my cherished supports:

Before you start raging and calling me a troll, what do you notice about all these champs? Especially These champions can all do heavy damage to the marksman, without taking damage in return. Free harass while my marksman freely focused on farm.

My goal is to destroy the enemy ADC. As long as the enemy support doesn't have Point-and-Click CC, then are great options.

With these champions, I try to let my ADC get all the kills though I'm very capable of securing the kills myself if they can't, I take and only touch minions to execute them with passive. I also build these champions on the tanky side, since I should be a tank as a support without healing.

As an ADC, if I do secure the kill, you should know that good farming nets you way more gold. So kills shouldn't matter if you're ahead of enemy ADC by 60+ farm because of my playstyle.

Update: http://boards.na.leagueoflegends.com/en/c/gameplay-balance/mOcynI5V-guide-to-be-off-meta-support