Moog:

They seem willing to try and understand but you are not giving the benefit of the doubt. It sounds like they want to listen to you.

IMO - I would try to engage in a conversation with them where you can set the limits and identify what you wish to share with them upfront. This will be a start. Right now, if I were them I think I would feel cut off from you by your choice.

If you truly want them behind you, you have to start somewhere. You have to decide what that will be. Try to explain it in terms they will relate with or understand from their own experiences in their lives.