You seem to miss that the comparison is not did a white person and a person of color die at the same time…it is did a person of color die in disparity to their representation in the population and/or the percentage of superheroes of color.
You seem to be working really incredibly hard to miss the point.
In addition, you seem to miss that I liked the movie, I said Marvel was short-sighted not that Marvel was racist (I said the cull was). I 100% agree Thanos was a great villain (certainly the best in the life of the Avengers series).
We can both throw anecdotes of kids we saw back and forth, but since Black Panther came out I have seen hundreds if not thousands of people showing pictures of them in front of Marvel cut-outs using the Wakanda Forever salute. Before I walked in to Infinity War I saw 2 kids do it.
I didn’t say it didn’t work, I didn’t say it wasn’t plot-driven, I didn’t say they weren’t coming back (in fact I explicitly acknowledged the opposite).
We can agree to disagree, but I don’t agree with your premise or the idea that it is a white-to-black comparison absent demographic percentages. Sure, I lack the MCU data to be 100% accurate so I did the best I could with what I had.
In my opinion, it isn’t enough to nitpick about if someone is or is not of-color, the argument is would it have hurt to ensure the survival of a few more people of color (in green face, a British accent, or from the fake country of Wakanda).