Grandma making comparisons between grandchildren. How to cope?

Write a letter to her explaining why you feel the way you do. If that doesn't END the situation then just don't visit her and keep your child away. Kids need grandparents to be there for them and support them. That's just a toxic situation. Thank heavens your child is too young to be affected by it now. That's just not healthy and could really hurt the child when he gets older. No to mention it might cause a lot of resentment between the cousins. It's a shame that grandma can't behave like an adult.