How many genders are there ?

If the you consider gender to have a biological basis. There is only two.

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If you consider that biological sex as not the final basis and that it is mire of a social construct. Who knows how many it can be. The SJW types tend to use this perspective.

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I myself considered that question and my first posts had more weight to the argument than to consoder it as a social construct. Still gays and lesbians can be considered more of an sexual preference issue rather than a gender issue IMO.