I personally think a lot of the anger about the Bridgerton adaption came from two groups:
1.) people who adored the book series and had very, very specific ideas about how the characters should be and what they should look like and
2.) people who saw it as “rewriting history” and I think mentally tied it to the current events of renaming monuments, schools, and countless other things as people reevaluate historical figures and even history as it was traditionally taught.
I think there were a lot of people who took personal issues or anger about other things and applied them to what was supposed to be a piece of fun, escapist entertainment.