I think you think you called out sexism, but in actually, you have perpetuated it. PP shared his/her own opinion with no attempt or claim made to speak for other people.

Your contribution was to declare which opinions belong to each sexist grouping you architected. You have said, "Your opinion is a western male one," but I doubt you know PP's origin, so you are shooting in the dark.

You have said, "Asians are like _this_. Women are like _that_. Men are like _this_. Indians are _that_." That is prejudicial, and even worse, normative, behavior by you, compelling others to conform. If I were an Asian adult who didn't like the colors, your comments might make me feel hurt right now, whereas PP's comment was acceptable.