Board Thread:Supergirl discussions/@comment-27700324-20180605040923/@comment-27700324-20180605193701

Yep. In fact in the New Krypton story. Most were prejudiced against him because of his human nature and never really accepted him. Which made it easy for Zod to get more power in that storyline. However Allura advised Clark to join the military guild to keep a close eye on Zod. So yes, he is alien to them.