TWITCH NEEDS NERF

How can it be fair that two equally fed ADCs can trade and one ults the other before the trade starts as (MF) and then twitch can turn and just auto thru your ult when its uninterrupted and kill you? Stealth when hes in combat and Im not sure the CD but pretty much be stealth the entire end game and then auto u 3 times for a kill?? TWITCH NEEDS NERF COMPLETE BS. Not to mention this twitch didnt even build more than 1 AD item then attack speed and he can trade hit for hit with a full ad MF not to mention the MF got 2 hits before it starts? and if he is going to die he just stealths and then HEY HEY theres the twitch u just had dead and can 2 shot u with attackspeed somehow?? MAKES NO SENSE FIX THE DAMN RAT