Support its fine, very useful in teamfights (imagine that, it is his role!), but he is not good at holding, a support only can hold 1vs1 vs against some classes, and of course he can't stand one against two like he did a long time ago.
Support its OK ATM, if you nerf supports more, you remove them completely from the game, there will come a time where there will only be characters with a lot of mobility and burst