Why do we have "Late Game" Champs?

What IS late game perse? why should we have a champ do just OK in the beginning and mid but then almost unstoppable late game cough cough

I dont think the concept of "late game" is honestly healthy. Simply cause, you can get to "late game" really fast especially in this snowbally rut league is usually in. Fed Kog, gg, fed twitch, gg. Most of the time. Fed Trist, its all the same. I dont feel like champs especially marksman who have range and lifesteal advantage, should be able to out put THIS MUCH DAMAGE, it feels helpless most of the time even when you're "itemizing" against them. Its not that i have an issue with adc's or lifesteal (even though lifesteal is really stupid concept in a game like this if its not built into a champs kit already).

Does anyone else think that all champs should have an advantage if they are late game, but not a complete faceroll? ADC's shouldnt be a role that is given all these advantages, yes, i believe adcs should be weak af. ADC mains will dislike me sayingt hsi but its true. I find come lategame these particular adc's are overwhelming or if the get ahead.

I guess the point of this post is that, game health is relative to its diversity. The more diverse something is the harder it is to balance. ADC's are too diverse in power level, they should be left click range damage dealers with little to no utility or defensive stats. Instead they are so safe, regain uber amounts of health and just absolutely shred things. Part of me sometimes thinks that ADC marksmen are a bad concept for a game completely. But I wouldnt honestly go that far. I would highly consider making "late game" more about evening with the enemy team or having a slight advantage over others, definitely not, "wait till late game guys and im gonna carry us to victory, this'll look sick for my montage! OH BOI!"

Its not just ADCs though its also champs like fiora and yasuo.....

just some thoughts about game health from a joe of the community.