Ezreal/Corki ADC

Maybe it's just me, but whenever I see someone take Ezreal or Corki ADC I cringe.

Honestly, they're just shitty. Almost their entire kit is based around AP, yet people still build them AD. It's like Ziggs/Annie ADC. It's just dumb.

Just because it's meta doesn't mean it's good. An AP build on either of them is far superior. I haven't seen an Ezreal/Corki ADC that has done any better than "not feeding" in such a long time it's ridiculous. (Ezreal Mid, however, keep it up)

Kog'Maw used to fit in this boat a bit more, but the crazy AS steroid he has now makes him a bit more of a fit as an ADC.

Am I wrong about this, or do Ezreal and Corki just suck when built AD?

EDIT: Sorry I didn't make it clear. This post primarily talked about Ezreal. Corki isn't weak in the same way as Ezreal, because he has some AD scaling. However, he misses out on a ton of damage from the AP scaling on his abilities.