All of your points are addressed in the article, but in short: phenotypic and behavioural diversity within each sex class in gonochoric species does not imply t

All of your points are addressed in the article, but in short: phenotypic and behavioural diversity within each sex class in gonochoric species does not imply that sex itself is a spectrum. Nor does the existence of hermaphroditic species, in which each individual embodies both female and male reproductive systems, imply this either. It's quite telling that no-one who advocates for a 'sex spectrum' model can actually define it in a way that applies to all anisogamic species, is consistent with the observations of biologists, and has any scientific utility.