It’s not a genocide because it’s not a systematic attempt to exterminate a group of people based upon race.
Troons are not a fucking race.
People conflating genocide to mass murder don’t help any related issue, are disrespectful to actual genocide victims, and need to educate themselves about terminology instead of applying it for dramatic effect.
And idiots who burble “race is a social construct” or other such oversimplified nonsense to cover their lack of understanding and moral indignation need to drink paint.
Yes, under certain definitions of “race” it’s not strictly correct, but when it is applied to mean a specific ethnicity with a related culture and which can be proven by genetic lineage then it’s a convenient shorthand.
If someone can get a solid peer reviewed report that indicates that Troons all share a specific genetic lineage, then fine.
Then however the fucking Troons still have to prove that there is a specific policy of one or more governments to target and exterminate Troons based on this genetic lineage.