Natural selection is mostly about _dying_ before you have a chance to pass on your genes. Let’s say you’re right that taller men “have been seen as more desirable since ancient times.” Since taller men are, as you say, uncommon, then women are still mating en masse with shorter men. There’s nothing stopping shorter men from passing on their short genes.
Beyond that, you’re talking about the span of a few thousand years. That’s nothing on an evolutionary scale, and in the modern era we’ve built up entire industries around circumventing natural selection.
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