On-hit Yi is disgusting and needs to be tweaked

Seriously, it does more damage than crit. Yi....and by on-hit I literally mean Bloodrazor->Guinsoo's. That's it, those are his two damage items, and he insta-gibs me, like legitimately insta-gibs me. How is that fair? I would understand if it was crit. Yi, but on-hit offtank Yi?????

So, for starters, fix Guinsoo's with Yi, Double Strike shouldn't proc every 2 autos, that shit is soooooo obnoxious. Then lower the base damage of Alpha Strike and up the AD scaling. Then lower the amount of true damage he deals with E, cause he seriously did 2.2k true damage to me in 4 autos which happened in under a second.

But nerf Katarina amirite guys?????