How would you respond?

Ah, I see. In my opinion, your answer was over dramatic and made you look foolish, so I said it. if you don't like what I post simply skip over it.  No need for fighting & harsh words. wwjd?

 That's not name calling bunny,yes it is use your reading comprehension skills.
What, you can't afford adequate child care?yes I can

 Why are you pawning your kids off on your parents? I don't

 I mean, that's really the only reason your parents are babysitting them according to what you previously stated."If yall had adequate childcare and didn't pawn ya kids off on aunty or grandma"[sic].they do go to daycare AND visit family.  I won't trip over family tho
What rolls in your family simply doesn't roll in everyone's family no sh*t, I am VERY much aware that we are all different.

 hence why some here would be mad at the grandparent for taking it upon herself to make that decision. Idk why they are mad.  It is just hypocritical to me that all of a sudden ppl wanna talk about boundaries, rights, permission, etc... and flip flop in another topic

 End of story, the sooner you allow that to sink in, the sooner you'll stop being angry.  
I actually beginning to think that might have been an undercover trolling post.  As I said a long time ago, the go to words that ppl on bhm use when others disagree with them are mad/angry, basic, & troll.

good answer.  how does circumcision fall into that?  i can see the hair cutting falling into the three categories you named.  

actually-- i might be less upset if the child cut her hair herself bc she is taking autonomy into her own hands. my point still remains that the child is being taught a bad lesson by grandma acquiescing. and she is learning how to circumvent her parent's authority.

the mother might have had her reasons outside of vanity for grooming her child in a specific manner. just like with clothing or anything else.