For me it really doesn't matter, bc most of the challenges I face (and to a certain extent all trans people) are bc of society treating trans people like shit
If society treated trans people with respect and care then well I would just have an annoying medical condition which is fine by me
Tho I absolutely see and understand why someone would wish they were just born cis, tho I imagine society not being trash to them would also go a long way in lessening that desire.
Also to give my answer to your questions, I don't think being concerned about passing has much to do with wishing to be cis but more to do with wanting to be treated with respect and kindness. From what I have seen people talk about the major things for wanting to be cis is having a strong desire to have the same anatomy as a cis person and not having to deal with immense dysphoria (obviously society being shit is also a big thing but if that were not the case then the previous reasons would be the main reason for wishing to be cis)
Careful you wouldn't want to brake the vile, it's important medicine for people