Imagine if there were 4 variants of infinity edge
Then would people start complaining about ADC item diversity?
Then would people start complaining about ADC item diversity?
There's currently one technically, being essence reaver, but people will bitch anyways.
I'm laughing because people will complain about supports having to build a sightstone (oh the horror) when they have 4 different sightstone options.
Ah I see. People complain about things all the time, it's not surprising.
my big complaint is there really isn't much to choose from with the variants. they're just stat sticks to free up an item slot. I've proposed ideas before of having the wards from the combined items give special effects on placement like a slow or mini shield similar to their normal counterparts so they could be more defined as an active warding item.
If I can drop a ward on someone as a skill shot and have it do damage, I'll stop complaining about building this trash item.
That's the most hilarious thing that i have heard someone say. Good job.
To be fair, there are Melee/tank supports (Relic Shield Users), Mage Supports (Spell Thief Users) and Supports who are ''just supports'' (Coin users) They're different enough to fall into different subclasses.
All Marksmen do pew pew with crits. They're all listed as the same Subclass. Some of them being hybrids
The different types of marksmen (Casters, AA focussed, On hit focussed, Morgan Freeman) get to build different zeal items
,
different Lifesteal items
And different Last whispers

The point I'm trying to make is that ADC itemisation is already diverse.
I agree that ADC itemization is already diverse, but people scream "no support diversity" when they are required to build exactly 1 item.
In their defense, Redemption seems to be crowding out other support items, like Locket did before it got nerfed. Other than that I agree with you.
What I think the problem is with sight-stone is that it is a bad item which you NEED to get.
I play a decent amount of support (And for the record I DO get sightstone), and if you go and buy
or
, you are missing out on the much better actives on
and
, while those eye items's base stats aren't that better from their regular gold item counterparts to make up for it. Meanwhile
and
force you to get health, wich unless you're a tank support it isn't REALLY the best stat to get, and you don't even get a lot of it anyway.
I think one solution would be to reduce the price of sightstone for supports. I would also like an ap-version of rubysightstone
I thought people already complain about it anyways right now.
I see what you did there. 
I think why people call it in diverse itemization is just items are better than others not adapts to a situation in most cases.
Items:
all of different niche. However, PD is only used on Lucian, Sivir, and Graves because either dueling power or how broken it is with damage reduction and permakite. Hurricane is every other ADC except Jhin and Vayne. Firecannon is everyone who buys 2 Zeal item's second zeal item. Shiv is bought by no one but Vayne.
What it should be: PD isn't broken anymore and loses some damage reduction and MS off it's passive. Hurricane loses -10% crit chance and loses some interactions or something. Firecannon is fine. Shiv gets buffed in lighting chain range to chain onto people, also +5 damage.
Lifesteal items have more diversity. BT for usual case. BoRK vs tanks. MercScem vs hard CC. DD has no place.
Last Whisper is where it gets really stupid.
to negate healing if it's warranted, otherwise build
and every tank dies very fast.