What exactly happened in the movie get out ? - eviltoast

Like if they were white people put in black people’s body why do they work like slaves and act like robots ? As we know the black peoples mind is trapped as only a passanger why would the rich, loved asshole white people who are in charge work like slaves especially because the main one in movie were basically their grand parents? And also why would racist people want to be black ? The only answer i can think of is the plot wasn’t that much thought out and they just ran with it and the people praising this movie does’nt care about plot holes which sucks because these are crucial aspects of this movie . Am i missing something ?