Marksman in URF are way too strong!

So why is it in every URF game i play ADC/ marsman destroy the game. The have abilities they can cast but most dont because all they need t odo is sit there and auto with the 100% boost to their attack speed. Either they need to turn down adc auto damage or take that down to 50 % like everyone else. And why does it seem like marsman also have this Damage buff from Urf. I was 3 shot by a draven with BT when i was 2 armor item Ali. thats should happen.