People giving one star ratings need to get a grip and go touch grass. A romantic relationship between two toy potatoes is fine, but god forbid they show anything other than a cishet family.
Families come in all different shapes and sizes (kinda like potatoes). It's a movie about a space ranger in the future. Hopefully, in the future, we'll be evolved enough to stop labelling the representation of families who may be different from your own as, "political".