Can we talk about scaling?

I feel like Champions like Master Yi, Vladimir, and Kayle are pretty problematic and unfun to play against.

Why should any champion be rewarded for not feeding? The point of those hard scaling picks is to win late, which is theoretically fine, but it never works out that way. It always ends up rewarding players not actually doing anything and being rewarded for sitting there doing nothing until 20 minutes when they just 1 v 5.

Furthermore, why should such simple champions be the best at carrying games? Why are easy picks like Yi, Kayle, and Vlad (who's pretty easy) rewarded for doing nothing the whole game and simply have to auto or perform one combo to win a fight? Why shouldn't a hard champion like Rengar top, or a mechanically difficult champion be the one to 1 v 9. Isn't the point of 1 v 9 is that it's hard? But these champions break that by fundamentally saying "well, you didn't set me behind enough early game, so gg". If these were extremely difficult champions, I would have less issue, but they're not.

This is even more of an issue because 2 out of these 3 champs are top lane. With the new changes to dragon, spending effort to put a Vlad or Kayle behind will just result in the enemy team taking drag, giving them a big advantage, and a lot of the time, getting a kill or two onto a scaling pick really doesn't matter in the end if you don't do other things to push your advantage.

The main issue is that sustain in this game is ridiculous. Just look at something like Akali mid-with Shield and Fleet, she won't be bullied out of lane at any point. And that's the same issue with these scaling champions-because they have to scale, they're given a weak early with tools to help them survive. But between that, runes like Biscuits and Pot, and Doran's shield, it's often hard or impossible to bully them out of lane, giving them far too good of an early game.

Look at Vlad. The sustain from Q isn't bad in the first 5-6 minutes, but after he backs and gets Kindle Gem and Codex, he can just sustain pretty much forever.

Kayle gets Fleet, W, Pot, and Biscuits. She has an easy time util she becomes ranged at 6.

All these champions should not have access to this. To me, the only real counterplay to them is to gank them, WHICH IS NOT COUNTERPLAY. Everything sucks at ganks.

I just hate these picks because it's not a matter of if, it feels like a matter of when.