Request for a tanky item with attack speed

The majority of them rely on a few autos to trigger larger amount of damage on abilities. For instance:

Darius needs 3 autos (not counting his reset, because it wouldnt be benefited by this item) in order to access larger amounts of damage from his Q and Ult

Mordekaiser needs 3 autos which are enhanced in order to deal most of his damage, he wouldn't benefit much from being able to auto more, faster

Garen...he's a spin-to-win guy and doesn't really regularly auto much except to proc grasp or something

Nasus? He doesn't rely on attack speed

Illaoi? No autos there

Basically, attack speed assassins that dive comps would benefit from an attack speed item with tank stats way more than pretty much anyone from the juggernaut/tank class would. This is because tanks don't auto much and only a few juggernauts auto, and in those cases it's only to proc damage elsewhere or is limited by a certain # of autos so more attack speed wouldn't benefit them much.

TL;DR: An attack-speed tank item is a contradiction of classes, which is why one class would abuse it more heavily than the designed class. Attack speed assassins benefit from the bonus survivability + their needed attack speed way more than a tank would benefit from attack speed + their needed survivability.

BC helps with juggernauts lack of gap closers + compliments their shred efficiency while providing slight ad and a large amount of hp (both are common juggernaut stats)

If you want to slap tank stats on an attack-speed fighter item, it will benefit actual attack speed assassins more than a real juggernaut

So you tell me it makes 0 sense for a champion who is auto attacking you at melee range to have no sustain and durability

1. no one mentioned anything about sustain, that is plentiful for many autoattack champions

2. sustain is their durability, where we you when tank Fizz/Fiora/Yi was a thing? You thought that was fun with them being able to stack resistances/health and still do their job?

3. Vi is a diver, neither a tank, juggernaut, or bruiser, why even mention her

4. Udyr has a plethora of problems but he's just about the only champion that a tank att spd. item would benefit equally to those who would abuse it

5. Yi??? He's a diving att. spd. assassin, what part of him is "bruiser/tanky", he's one of the prime examples that would break an item like this lol

6. Jax, yet another diver that is semi-relevant to an item like this

7. Olaf...ok? The dude's doesn't prioritize att. spd unless you're massively fed

And how is talking about their kits relevant in any form to how a tank att. spd. item would break one class more than it'd be worth for "bruisers/tanks"??

You're getting way off topic dude

How are you not understanding this? This was a comment in terms of existence and balance, it is quite obvious

But for some reason Black cleaver is fine