Hi mom's, what's your opinion on a father who's mom is mad because you won't allow your kid to see her because she said…

Hi mom's, what's your opinion on a father who's mom is mad because you won't allow your kid to see her because she said that isn't her grandbaby because her son's don't spit out girls? Also who is making her son do all her dirty work as in taking you to. Court and asking them to make you change your child's last name to his? And wanting joint custody, need I say they lied to this attorney.