wait... nevermind

He gets it from his grandfather.

He also got the "can pull 5-star alien baddies effortlessly" from his grandfather

think about it
you have casually have 4 arms and another species with 2 literally calls you 'four arms' 🤣
thats exactly the same as racism rn

'4 eyes' ahh type of name

But he becomes the alien so is it racist?

Not racism. Speciesism.

He (and max) also called lenopans sludgepuppies, which is a derogatory racial slur (sure, it was only revealed in omniverse, but still)