Yes, Hamilton never confronted his friends about them keeping slaves.but I do not think this is what the musical is about. Cause the musical doesn't glorifies anyone. It tells a story, not more. And I think it's a wonderful thing that the cast itself is mixed with all kinds of different nationalities like never in a broadway musical before. Yes, back then Hamilton was on the wrong side.
But right know, the musical, the casts are symbolizes the right thing. Unite, and equality among the people.