That’s a stretch … In Genesis 1:27, “man” doesn’t necessarity signify more than one man; “him” doesn’t mean “them” and obviously refers to one man; “male and female” doesn’t necessarily mean “males and females”. The verse is obviously referring to the one man and one woman God created - ie, Adam and Eve.
Nothing in your argument, by the way, explains away the description of Adam being created from inanimate matter in Genesis 2:7.