I'm going to tell my sister she'll never see her nephew again if she can't call him by his real name
Why would you make threats like that to her?
She should respect us and use his name.
It is wrong to call people names that are not theirs. If she can't respect you you should keep them away from your kids to not shame or confuse them.
It's my son and I think that I can tell people what to call my children, so thank you for agreeing with me.
She should just call him by his name. I do not understand what is so hard about that.