a table is neuter, at least in language
ok, the reason we shouldn't say 2 genders is because that's what LGBTQ wants us to say because gender and sex are different, sex is 'boy or girl' while gender has to do more with language than with the essence of the thing, gender is abstract while sex is phisical. a boat has no sex, but its gender is female. gender has a much greater stance in languages other than English, but I'm not too familiar with any to give more examples.