Hard to figure out exactly how likely that is, but we can come up with a rough guess. Some of these numbers are likely a bit off, but not a whole lot off. (Percentage of non-cis people may be higher than 0.6%, but it’s not likely 10%.)
Percentage of the world that’s white: 11.5%
that’s male: 51.9%
that’s straight: hard to confirm given the number of places where it’s illegal, but estimated at approx. 94.9%
that’s cis: harder to ID, but estimated at 99.4%
that’s allo: again, estimate only, 94.9%
that’s Christian: 31%
that’s neurotypical: estimated at 97%
that has no disabilities: 85%
Odds of someone having all those traits at once: 1.37%. It’s not entirely unrealistic that a person would be all of those things at once – I mean, he’s gotta be something, right? – but it sure does put into perspective how many characters are being shoved into this tiny, tiny niche.