I think how we respond to a Catholic who goes through this is different than how we respond to a non-Catholic/Christian.
You can encourage the patient bearing of suffering temporarily in this age and offering up to Jesus, whereas that doesn’t translate for a non-Christian.
Whereas a Christian might have the strength and hope, a non-Christian might just despair of the situation and commit suicide.
The attitude of “Just deal with it. You have a disorder” seems very cold and unsympathetic, leading to a point where one feels they have no hope or recourse for a better outcome in the future.
And we don’t know how our mind, body, and soul connect. If the soul and mind are one gender, but the body happens to interpret as a different gender, who are we to say someone is sinning by getting a surgery. If the material body is prone to error, then gender confusion/dysphoria/etc might be the “fault” of the body and not the “fault” of the mind/brain/psyche. Is there Church teaching that says the gender is defined by what the chromosomes and bodily organs dictate? Or moral culpability depending on psychological state?
I’m sorry if it seems cold, and I didn’t say “just deal with it”. But note also, I didn’t cite to religion at all.
All humans are disordered in some fashion, and we have to deal with that. But in recent years its been a very strong trend in our society to hold that all afflictions, because we have them, are to be embraced. But by embracing them, we may in fact be making them worse, and we have realize that this may be doing harm.
To give an example, I am certain that there are a segment of people who have addictive personalities, and a certain segment of them can become strongly addicted to drugs or alcohol. Should I, in order to seem to be kind, buy alcohol for them? I don’t think anyone would agree with that.
More closely related to this, there are quite a few men who are strongly attracted to multiple relationships with women. Should I introduce a man with that inclination to a woman who might be willing, presuming neither are Catholic? Both could legitimately say that they were acting on a natural impulse.
Most men like to look at the female form, but we also know that some can become addicted to that. Should I accept that this is just nature at work and send them links to view? If a family member subscribes to every magazine of this type going, am I being “cold” by throwing them away?
At the end of the day, I don’t think there’s one natural law for Catholics, and another for everyone else. There’s just one. And disorders that are unnatural, are unnatural. Every single person has afflictions of this type, some of which are severe, and some of which are not, some of which are personally shameful, others which are physically painful. We do no kindness to a person by pretending an affliction isn’t one. We don’t help the person who is struggling with a disorder by pushing him or her into it. We wouldn’t hand matches to an arsonist, we wouldn’t set up a date for a guy who is going through women, we wouldn’t encourage a person who is overweight to go to the bakery. We shouldn’t pretend something like this is just one of those things. It’s a horrible affliction, but encouraging a person to embrace their affliction, which is what many in society are doing, is deeply unnatural, and harmful.