I'm strongly against that young man marrying my daughter because he is deep brown-skinned
Are you saying you do not like black people? Why is that?
It's my personal choice. I dislike people who are so dark-skinned.
Your daughter will be very offended if you voice your opposition to her marrying a dark skinned man. This type of racist view is disgusting and outdated. Try getting to know your future son in law instead of deciding how likeable he is by his skin tone.
She has never brought him home. I have nothing against him personally.
Wouldn't you want your daughter to be happy if this is the one she loves? I think it's worth trying to see past this skin color prejudice, because he could be the sweetest man you've ever met.