A Suggestion on How to Make Your Game Better

I have been trying to get back into this game but so far I have not been able to do just that because i find certain concepts within the game to be asinine. I don't understand what the point of playing certain melee heroes in the game when they're easily outclassed by ranged heroes in this game that can perform a similar task. With the introduction of such items as rapid fire cannon, it makes certain heroes in this game capable of fighting without any form of retaliation, notable examples would be: Caitlyn, Tristana, or Twitch. This is genuinely frustrating to play against as a tank or melee fighter and my suggestion to remedy this would be either a ramp up in MS+Health or a baseline tenacity+Health. Pretty much unless you snowball early and can out gear the enemy ADC there isn't a whole lot of ways to engage on these people without having your HP chipped down nearly entirely to actually be able to do something in team fights. I understand this as being poor design because there is little to any thought given. Honestly ADC's or ranged champs should have the LOWEST MS in the game. Seems pretty questionable to allow ADC's to have the range and dashes in most of their kits.