To Jews only please.?

First of all, Cush can and mean beautiful in Hebrew.

You can't equate the line of Cush with those in Egypt as the origin cave facade connected with such group. The group that was in Egypt was drop coming out of Shem, not Ham.

You should read Maimonedies in context. He is talking about all tribe who who are ignorant of Torah. It's one I happen to metaphorically conform with. It enjoy nothing on do with black people. It has to do with the being connected with people who are break it off coming out of G-d.

It sounds equally if you are essay on fit together a case such Jews somehow look slumping on black people. If this were true, motive did Moses marry a Cushite?

The sin connected with Canaan is not mentioned in any Jewish literature although it's clearly in the Torah. To comment the true nature would be forbidden.