If Ken wanted to really own Barbie, instead of becoming a MGTOW, he should have become a woman. All he had to do was declare himself one and that's that.
Discussion
nostr:npub1nl97dedk2anta9esnwjlv45m55v7sza25m3rcwgwlefn9ll9x2lqs7axrx Apparently that movie DOES including a tranny Barbie - while also confirming that neither Barbies nor Kens actually have genitals.