I don't really understand

There are people who say supp is fine????? they dictate games alone with adc cause let's say i am renkton here is what i have to deal with a 24% dmg reduction adc with knigt wow and pd in the hope he did not buy dd too,a solari,a redemption a zeke herald,extreme cc by the supp or endlesss shields but let's say i am playing agaisnt braum he can block spells from burst mages and permaslow your melee champ with an adc dealing 800k per aa being untouchable, if you look at the lcs i really miss the times when you could say something like oh that toplane carried hard nowdays it is just oh that toplane supported very well the adc the midlaner supported very well the adc the jungler supported very well the adc and so on