Is their more than two genders?Watch
There's only 2 sexes for humans (so far that is... evolution has no end goal). Interestingly enough, according to Stephen Weeks, clam shrimp seem to come in three reproductive varieties: males, who carry two Z chromosomes, and two subgroups of hermaphrodites, one of which is ZW and the other WW. In other words, there are three sexual genotypes created by three possible pairings of sex chromosomes. Ants and other species are similar, showing that sex isn’t as straightforward as we have made it to be.
Technically there’s more than 2 sexes so to say there’s only 2 genders is just outright ridiculous.
Intersex doesn't count as a third sex. Each intersex individual are unique and are biologically different from each other. Intersex (the condition) has been traced back to a set of specific genetic disorders. Generally speaking, intersex is usually the result of either a specific mutation to the genes that govern sexual development or having multiple copies of sex chromosomes.