My grandson asked me not to buy him anything for Christmas, just

Villas - My grandson asked me not to buy him anything for Christmas, just to always remember him and love him. I told him I will always love and remember you, but I would still like to get you a gift. He replied, "My mom will only take whatever you buy me, so I don't want my gift to be taken away just like she took you away from me." I guess the most confusing thing to him is why she doesn't take away his siblings' gifts. She has always treated him and spoken to him with no regard for his feelings. He's such a kind child but this kind of hatefulness is causing him to feel worthless and unwanted.