Attraction isn't a choice or a preference. No one can control who they're attracted to. Dating sites "automating racism" = showing you people that you're likely to be attracted to. Nothing is wrong with that.
This article just seems like more race-baiting and trying to identify a problem, and a victim class, where there really isn't one.
So send your kids to a diverse school with lots of intermingling and life will uhh, find a way.
If you are constantly presented with people from a narrow group to the exclusion of others you will reinforce prejudices.
One reason Asian men are deemed less attractive in the west is the way our media has traditionally portrayed them. K-pop and the Internet are starting to change that. Black women are also suffering under centuries of negative stereotyping. It’s the stereotypes that are unattractive. People are all unique.
Attraction is mediated by culture, i.e. there's uptick in Asian men attractiveness after kpop phenomenon at least in under 30s. Dating sites can do a "DEI" and brute force more variety into skew percentages of click throughs through mere exposure effect. They can remove option to filter by race or height or whatever physical characteristics. But that's competitive suicide vs dating sites that don't. There's nothing legally wrong with automating racism, but that's also more or less what it is. People don't "control" who they're attracted to, but platforms that mediate / gatekeep how people percieve attractiveness can mess with the dials, if they wanted to.
Why stop at forcing people to choose different races? Let's force women to date men who are short, bald, unemployed or homeless. Let's force men to date women who are overweight, elderly and annoying. Let's take the 'market' out of the dating market.
Dating isn't fair, often it is opportunity, chance or pure luck. The attempt to correct anything here will likely not bear any fruits, on the contrary.
I also use another definition of racism. The belief or often conscious conviction a race or ethnicity is superior to others due to intrinsic biological/mental advantages. I am not racist against anyone I might not consider attractive.