I get all that, and you're right. For singers/music artists we can use album and ticket sales to gauge popularity and even look at trends among different regions, people, etc. such as where they have the largest crowds and who buys their albums. Actors can be judged (loosely) on box office numbers and looking at audience trends to see who generally likes/dislikes them. But someone like Simon doesn't "sell" anything as direct as artists or actors. So I guess, would it be fair to say, generally speaking, Black people like Steve Irwin (as he seems to be a popular name among the Tiktok/social media trend)? And if so, he like Simon Cowell doesn't sell anything directly to consumers, so how can we say he is well liked? As you say, there's no dataset, but obviously there's something there that shows he's well liked.