MIL hates our baby name!

Hey y'all so my husband and I recently decided on a boys name for our baby coming in January! We were so excited that I called my mom and he called his mom. My mom replied with whooping and saying how much she loved it. I walked back to my husband who was still on the phone and I could hear his mom saying "why that name?" "Do you want him to get picked on" and other things to try and get him to change our babies name to the first and middle name she suggested. I was a little irritated and told him quietly to please hang up and that I didn't want to hear her talk about it any more. Especially because we were so dang excited! Well last night she's texts us in a group chat and sent at least twenty other names that she liked and proceeded to tell me that she prefers another middle name to match my husband after he told her he didn't want to name the baby after him. Her text said all the suggestions then at the end said just know my favorite is a totally opposite name of what we had chosen. I am so irritated and hurt and annoyed. Am I overreacting? What should I even say to her?

Edit: our baby name is Graysen Jeter Johnson. Jeter after my husbands favorite baseball player. My husband and I agreed he could choose the name of we were having a boy. (Please don't comment that you hate the name;)