When choosing between color and colour, keep in mind that both spellings are correct. The shorter one, color, is the preferred spelling in the United States. The rest of the English-speaking world uses the longer form, colour.
I mean, real talk for a moment. color makes way more sense then colour, same goes for honor, and endeavor...
I'm 100% in favor of large scale English spelling reform, and I think we should go way farther theen just removing a few us
You're just culturally conditioned to think that way. There is no logical reason we should spell like this, It wastes time, space, and confuses people trying to learn how to spell.
"Retarded" is a relativ term. If yue had grown up speling like this, yue wuld see it as 100% normal.