What if I tell wife I don't want my kids photos on facebook
I understand your concerns. Have you shared them with her?
No, she has zero aptitude when it comes to technology.
It's understandable to protect your kids from social media. You can tell your wife to change the privacy option of the photos.
She always ignores me. I really should divorce her.
Sounds like your problems run deeper that social media literacy. You need to see a couples counselor, not a computer maven.