Take Action

Just don't be an asshole - you don't have to understand the origins or the hows and whys of another person's gender identity. Just be a decent human and respect how others wish to be in this harsh world. If others aren't conforming to how you view societal roles and it isn't impacting you in any way, leave people alone and mind your own damn business. You do believe in individual liberty, don't you?? And if you can be open and listen, engage a transgender individual or parent of a transgender kid in a conversation to learn about their lived experience. You just might have your heart cracked open a little bit and feel some goddamn empathy.
Educate yourself - use the google machine to find resources that explain gender dysphoria and what gender-affirming care actually is. I can assure you that the process between becoming aware of a different gender identity and receiving gender reassignment surgery is LENGTHY and not all of our trans friends choose surgery. There are many approaches to gender-affirming care that an individual can pursue.

Promote the 988 Suicide and Crisis Lifeline if you think someone is at risk. People can call or text 988 or chat live at https://988lifeline.org/