You can click through to the actual list here: https://wallethub.com/edu/most-diverse-cities/12690

It's worth taking a look at their methodology and how they're measuring diversity. Notably, NYC ranks much higher than Houston for cultural diversity (#5 vs #28 for Houston).

If you slice the numbers differently you get a different result.

But the fact that Houston is even in the list in the first place is the interesting part. Whether it beats NYC or not is sorta not the most important part of my comment.

It seems the Forrest might have been missed for the trees. (I don’t feel like you understood or validated what I said, whether you disagree with the precise methodology or not)