@outofthemoon
Thank you for your kind thoughts of potential distress for me but I am fine talking about this with you. In my case it was a husband. I understand you feel it's harder with a son, but that's because you are failing to see him as an adult - & a capable one at that.
It wasn't easy.
But it was necessary.
OP's DH - if you think you situation is solvable without a row happening, you need a harsh reality check. Is it actually the case that you would rather your suffering wife left, & had to set up another home without you, than put up with a row?
If so, you need to adult up & start acting like a parent & a husband.
Read the Lundy Bancroft book FFS.
Whether it is a partner or a son is irrelevant. You have a "Angry & Controlling Man" living in your home against your wishes. You are allowing him to destroy your, your wife's, & your daughter's mental health.
If you feel I am being unpleasant I truly apologise - but FOR CRYING OUT LOUD MAN look what your DS did to your dog.
Your poor dog. Your poor wife. Your poor daughter.
Poor you too. But you know that thing your son did to your dog? That's just the start of it. That was his response to being locked out of YOUR home - to kidnap your defenceless pet, lock him in a boot, & call the police with a barrowload of lies about you.
Are you prepared to let this escalate any further, just because you don't want a row?
Are you prepared to let DS manipulate you again by threatening your dog (btw - whether harm came to dog or not is irrelevant, DS did it to frighten you. Next time he will do worse.)
FFS stop faffing about. Join NA - www.nar-anon.org/ & start talking to people who have lived your experience & come out the other side.
What you need to STOP doing is wanting your son to behave as any parent would wish.
What you need to START doing is modifying your own behaviours, because you will not change your son whatever you try. You can only change you, & how you deal with him.
Fellow NA members will help you with that.
I am welling up about your dog, & the implications for further threat to your household. Start taking charge & protecting them.