ZD, that wasn’t the question.
Jfem, your post and its relevance to the subject. We are not discussing initiating a protest against any people or group, the OP was talking about protesting their pride parade advocating for an average and prideful in their taivos.
Would you not protest against a chillul Shabbos pride parade, or a theft pride parade, or a parade displaying pride for any aveiros or taivos?
I would hope you would. Because I would hope that you’re on the Torah’s side, and Hashem’s side.