XYY - does not manifest itself outwardly... indeed most who have that genetic issue don’t even realize their karyotype.
These are fully male, and have absolutely no “symptoms” - and can almost always have normal fertility.
Those with the extra Y Chromosome often do grow a bit taller... I fail to see how that makes any difference to this discussion.
As far as XXY - or “Klinefelter syndrome” - Is also quite rare, and while it does have a few more physical hallmarks, it still has no relationship to the gender “confusion” the radical Left keeps trying foist on the rest of the world.
Neither of these genetic disorders leads to “hermaphrodites” as is claimed. The absolute “worst-case” scenario is that some are born with decreased sensitivity to natural hormones (and a male with XXY may produce low testosterone levels already). This can lead to “ambiguous” genetalia... but there are no documented cases that I have been able to find reference to, where a single individual has fully-functional gentalia of both genders. This is called “pseudohermaphrodite”.
With decreased sensitivity to hormones, the biological response would be asexual - there would be little to no sex drive.
Actually, I knew all that, oversimplified as it might be. That is why I posted my comment in response to your statement that “Humans are created with either two X chromosomes or an X Chromosome and a Y Chromosome. Period. Thats [sic] the way it works.”