My mom dislikes my sons long hair: Advice?

My entire family is mad at me for letting my sons hair grow out…he is 3 years old and has the most beautiful and long curly hair…my family said he looks girl and my sister told me my mom made a comment that when he went over there when i was at work she was going to take him to get it cut and now im scared to send him there…what can I say to them to make them stop

Not their children. Not their say. Period. You got this mama, stand your ground.