My partner's paternal family.

I'm so frustrated with my partner's paternal side of his family. His mom and stepdad raised him, his dad and paternal family all ignored him and his brother but now that I'm pregnant they keep reaching out and giving us gifts (that are not so subtle ways to influence how we raise this baby.) Furthermore they insist on calling my son King Arthur even after I politely asked them not to because I don't like children even jokingly called titles. His name is Arthur, any other nickname I wouldn't care but they now use it to spite me. Then my partner's grandmother is arguing with me day and night because I mentioned I wasn't going to allow him to he circumcised.

Even worse my partner is adopting his stepfathers family name so I'm just waiting for the backlash or disownment when his fathers side learn that. My partner is scared to say anything until after the birth even though these people have done nothing but neglect and hurt him and his real family. And now constantly show disrespect for me.