If you feel uncomfortable with the name, take the guts and don’t give it to your child.
Giving two names and not using one name is absurd. The kid nebech has this name attached to him/herself, and the person that is officially being respected by giving the name to the child is not repected. To the contrary, he/she is being disrepected by purposefully avoiding to use his/her name.
Who cares what parents and grandparents think when it comes to this issue. It’s your child. Do what YOU think is right. They will eventually get over it, but you might not.
THINK FOR YOURSELF!