You don't understand the support problem at all. I play supp, and it is easy to get xp or gold. But for what?
The problem everybody knows but no-one talks about: the presence problem.
Early game presence is weak: in the past you were able to get kills on bot without jungler help. Now because of the strong regen/heal abilities, you cannot do anything in early game unless the other bot lane is stupid. It is nice to reduce the enemy hp by 80%, but they run back under tower, regen back in two minutes and your efforts are meaningless. So trading after some games are very boring, since decent supports knows how to protect themselves and the adc (that is their role). Summary: early game is boring unless the enemy does stupid things (e.g. no warding).
Mid game presence: this is where most supports shine. The problem is that mid game last for 10 minutes. So from a 40 minute game you can enjoy a 10 minute part. Congratulations riot.
Late game presence is weak: your 1.5 sec stun is meaningless against 10000 hp tanks, your skillshots can be avoided by items the others bought (protobelt, etc.). So what can you do? Warding, initiate a teamfight, and hoping to catch somebody with cc, but if the team cannot capitalize, these are meaningless.
In the end you feel in the majority of the time you cannot influence the game. You have NO choices, you need to adapt the team choices. You can only HOPING that a team is able to capitalize on a good CC. I just saw some stream recently, and the top laner said that olaf annoys me, I kill it, and he did it. When I am annoyed by a karma, what can I do?
So what supports need: tools for having a greater presence. What about a consumable item (only supports can buy it), which allows destroying an item in the enemy inventory? Frightening isn't it? But that would give supports a presence they need. Even though they still cannot kill anybody, but they could influence games :)