Why do some people get in a relationship (even get married) and have kids with other races?

Even I've found myself doing this once. One of my past ex boyfriend was Japanese. We broke up for other reasons. I think if his parents weren't meddling we would've had kids. They would've probably all gotten his features he had the dominant genes and isn't mixed.

But honestly people have even immigrated to reproduce with other races for many years. Some people get in a relationship and marry other races even today. Why is that?

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What on earth is so bad about asking why some people date and marry other races? I'm just asking a question. I
Why do some people get in a relationship (even get married) and have kids with other races?
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