Am I wrong for keeping my son away from my in laws?

My MIL can care less about my son. She’ll text my husband but never ask for my son. She has 4 other grandchildren (one isn’t hers biologically) but she favorites them over my son. Her Facebook is full of their pictures yet she has access to my son’s photos.
My FIL is in prison about to get out but can care less about my son. He gave my son a half ass Happy Birthday when he turned two and only really called us for money and to see if my MIL had selfies to send him 😒
I don’t want them around my son and I don’t want my son to know them at all at this point. They’re choosing and proving that they don’t wanna be grandparents no matter how much they claim to love my son