I wish we didn't have to hide.

This will be partially me venting and partially asking for advice.

I (20 F) have two partners, F (21 M) and Z (21 FTM). They are everything to me. But we live in the conservative south, and the lack of support can be really hard on us. Z and I have been together for 6 years and have faced our fair share of discrimination for being a queer couple, so we're kind of used to it. F is a straight, white, Christian, cisgendered man. He's never had to face discrimination like this. He also comes from a conservative Christian family, and fears that they would react badly if they knew. And everyone we know, including his family, knows that Z and I are together, so we can't try to pretend F and I are monogamous. I despise having to hide our relationship from the people we care about. I don't want to feel like I should be ashamed. I'm not ashamed. I love my partners and I want to be able to show that love to others. How do yall navigate polyamory in your families and social circles? Do you have any advice on how to deal with a secret relationship like this, or advice on how to come out? I really see a future with F and Z and I worry that the longer we wait to tell family and friends, the more likely they are to feel lied to or misled.

(Also for context, F and I have been together for a little over a year. 2 or 3 of our friends know about us, and I've told my parents, but none of our close friends know, and neither do F or Z's families. F and Z are not together.)