You aren't really correct though, because many of the effects and stats on those items were added because the auto attackers couldn't keep up with the melee champs.
Like, "ADCIn2k17 lul" was a thing.
Which resulted in
being buffed extremely hard.
Tell me, is there even a single melee champ you do not consider overloaded? Because in my eyes overloaded often equals fun, which means more players.
The non-overloaded champs usually have the smallest player bases, unless the champ posses a very powerful tool or just potent synergy between abilities in their kits.
Even now, the most banned ADC is Xayah sitting at the 12th spot. (OP.GG)
All the others ahead of her are melee, except LB at the 8th spot.
Meanwhile the most banned melee are kassa, fizz and zed. Followed by Zac and lee sin.
You speak like Ranged champs are dominating, but in fact melee are topping the game in terms of banrate which indicated that people don't feel pressured by ranged champs very much.
Nope, Assassins and godly tanks like Zac are still ontop, as they have been for ages.
But i looked at Lolkings statistics as well.
And there Xayah and LB had the 6th and 7th spots in terms of most banned, graves had the 8th.
Everyone else in the top 10 were melee.
And so wonder, which other games do you write of? And where is the issue? Because league doesn't seem to suffer from any particular ranged vs melee issue since melee are dominating.....
If i had to guess id even say the only reasons cait and Ez are so popular among the ADC's is because they are the only two who are truly good at not dying.
Which would explain their actually outstanding popularity, even if their ban and winrates aren't terribly impressive.