As a support main I feel like support items are losing their value...

Now don't get me wrong, I've played literally almost every champion as a support, from Leona and Rakan, to Lee Sin and Syndra, but with this relic shield overheal meta, and kleptomancy it feels like supports are forced to buy items and pray their adc is reasonable and the jungler or mid laner doesn't roam. Like buying is a great thing to keep people alive but sightstone takes a slot so some people buy instead because it actually does something and takes less space, but it makes it hard on us to get sightstone alone and a face the mountain and protective items..... We need better sightstone upgrades.... And Mana would be nice ..