Why do tanks HAVE to be unrelaible?

For a good long while now (more than a season by this point) Riot has been heavily focused on making tanks, as a class, significantly weaker by hitting their ability to do anything consistently. At first it was removing their ability to dish out reliable damage, which makes sense; tanks aren't supposed to be the main damage threat so dialing back on that gives room to make them better at the things they are meant to do: soak damage and apply cc.

Except Riot evidently thinks they shouldn't be able to do that reliably either. Shields on tanks have gotten weaker, while shields on supports and support items have gotten stronger. Waveclearing and sustain abilities on many tanks got weaker as did the items that give those stats (rip ). Worst of all is the recent Tank update where they just generally hit the effectiveness of tanks at doing pretty much anything. Tank items as a whole lost hp in favor of more resists... during a point where penetration is the most readily available it's ever been and hp is an objectively more useful stat than resists past 160~ Ar/Mr. Goodbye effective damage soaking. "But tanks still put out a lot of cc!" Nope, they hit that too. All 3 of the tanks that got reworked were changed so that _even their cc had to be "unreliable" _ with long delays, easily avoidable visual tells, or just simply being slow.

Carries do tanks' job better, they're more durable despite building less resists because they get reliable damage reduction , reliable sustain from lifesteal, deal loads of reliable damage by rightclicking you, and many of them have strong, effective cc to boot. Plus the fat shields and bonus stats they get from supports/support item actives. They're all strengths with no tradeoffs. If you're thinking about picking (aka Teemo 2.0) quit trolling and pick instead, he's more useful in every way.

At this point there's no reason to pick any tank that isn't , and you know why he's strong? He still has the things they stripped off every other tank. He has poke/waveclear, is actually durable, and is actually able to consistently land cc. And he's slated for nerfs. ¯_(ツ)_/¯ Why should I ever play tanks, again?