Correct, the hijra community is an abusive set of cults with strict hierarchies. It is, however, what appears to be the least bad option for a lot of Indian trans people facing ostracism. This reflects incredibly poorly on Indian society at large.

Many trans people that join the hijra community leave it due to the abuse. The ex-hijra community is one of trans women that has been around for roughly as long as the hijra community has been.

Here's a project from former members of the hijra community that left because of the abuse they faced in it: https://aravaniartproject.com

In any case, trans people have been around for as long as people have been around.

Trans is a Western cultural import applied to the hijra, this isn't how they traditionally see themselves, nor wider Indian society, e.g. if we look at misogynist cultural practices such as sati, with widows immolated on their husband's funeral pyre, these never applied to hijra as they aren't considered to be women, or men. If the idea of hijra was imported back to the West and applied to transwomen here there would be an uproar.

Not everyone, but plenty of people in the community and outside of it see themselves as trans women.

The western idea of transness is better (more freedom, less suffering) so of course it is seeing adoption worldwide. I'm the exact opposite of a cultural relativist. I think it is morally good for the best cultural ideas to win.

In any case it still doesn't change the fact that something resembling trans people have been around in every single culture for a very long time. It is because transness is universal, a part of the human condition.

Having seen up close how Indian families treat children that are trans I think you may want to reconsider your stance.

The abduction and castration of children by hijra gangs is well documented. There's nothing that really comes close to this in Western culture.