Why play a tank when you can't tank shit and assassins do more dmg and often more cc?

Like there's literally no reason to play an entire class because the class they're meant to counter literally still takes a giant dump on them in every category. Why play Warwick (admittedly a bruiser) when you can play Evelynn. Evelynn's clear is faster, she has better cc, better ganks, is safer with her heal, does SIGNIFICANTLY more damage. Why play Zac when you can play Lee Sin. Lee has more mobility, more damage, more cc, more utility.

Then you get to building armor. You can be a 200 armor Warwick with your dmg reduction on and can just do 5k damage through all of that with these stupid fucking items . These stupid fucking hyper mobile assassins just have no counterplay now other than being a more mobile assassin. It's fucking stupid.