What do you do if you don't support the child's marriage

I've always been very strict on who my kids are allowed to date and be friends with. I know people may call me "judge" but that is how things went in my house. If I didn't like the kid or their parents they were out of my house. My son is engaged to a girl and she seemed okay but there's something I felt about her. I found out from family she used to be a model. And she's modeled in underwear and lingerie and even has a calendar of herself. I told my son everything and came with the receipts and he said he already knew. She modeled to pay her way through school. So if she was a prostitute and wanted to fuck her way through school that would be fine I guess. I've raised my son's and daughters on how to pick a good partner. I'm disappointed he knowingly got with a girl who would sell her body like that. I asked what happens if you have kids and kids are showing them what a whore mommy is. He wasn't gonna fight with me and before anyone calls me w "boy mom" or whatever my daughters would get and have gotten the same reaction when dating someone i didn't like. My son then threatened me about my future grandchildren and said I won't ever meet them if I ever call his fiance a whore again which I found manipulation. I don't think he understands the consequences of being with a girl willing to sell herself like that.