[aeeeee]

I would say just because one culture is more inclined to sports and social activities doesn't mean it is racist to use these things as a discriminating factors. I don't think it's possible to argue that a selection criteria is racist unless the color of your skin is the sole discriminator.

[tesseractive]

On the other hand, it bears mentioning that you can be racist in your choice of selection criteria, if you choose criteria based on their ability to produce a certain racial outcome.

The use of a poll tax people have to pay in order to vote isn't racist per se, but in the segregationist south, poll taxes were used as a mechanism to suppress black votes because they knew (disproportionately poor) black people would have a harder time paying it, and this use was racist.