No. There are plenty of trans men happily with wives, husbands, or spouses.
You're hanging out with the wrong bi men if you're only encountering hook-up culture. Try more serious dating apps and you'll find those who also like to settle down.
Men, women, and nonbinary people can be attracted to masculinity, so that's a non-issue.
Luckily, for the LGBTQ community, there's less pressure to conform to to gender roles. I've seen femmes happily date and marry other femmes.
There are also DINK couples of all genders and sexualities.
There are nonreligious people (whether they be spiritual, agnostic, or atheist) of all genders and sexualities.
You do not need to detransition, but you might want to move to a less cissexist/heterosexist city.
I recommend this book and this book for helping you deal with these feelings.