Facts.
White men are only desired for perceived status versus "ease." What I mean is that it's MUCH easier for an average Asian woman to deal with a white boy making $150k/year compared to his Asian male equivalent. Asian breh that's decent looking and has his shyt together......he's going to have a demanding family and they're going to expect the best. Asian mother in law ain't gon want her son marrying some chick that can't even scramble an egg. White family will happily accept Soo Yung because she makes bank and has a flat stomach. Low standards. She wants a tall white man that she can control. Not a shorter Asian man that will check her if she gets out of pocket.
White women get picked the most because of perception. They have a reputation for being the most "sexually open", so dudes of every race flock to em. If you live in the West.....white women are the overwhelming majority (mostly) and are the most direct. They're also less picky. A dude can punch above his weight with white women if he approaches the right one. A Black female "7" will never entertain an Indian, Mexican, Chinese or Black male "5." White girls you actually have a shot in certain circumstances.
Dating shows are mostly going to feature white men and those white men are going to prefer their own race. White boys don't like having to think and change. They want what's easy and familiar. The producers ALSO want to promote the idea that whites are most desirable. They screen carefully so that the whites mostly prefer whites and then they pick Black/Asian/Hispanic contestants that are open minded. They're not picking NOI/Five Percenter type nikkas that hate white women. They want RGIII nikkas.
Ironically i think that porn helps to boost the popularity of white women among many men. Since most of the women in porn are white, most men worldwide believe that they’re easy to get and have sex with. And the most liberated/free countries when it comes to women are in the feminist west. Women in the USA, Canada, UK, France etc make their own money, they have rights, they have reproductive rights, they have easy access to abortion clinics, they have easy access to birth control pills, they can vote, they can date anyone without restrictions, etc. So it means that
women can slut it up with little consequences out there.
That’s why white women get chosen by many men. Men blinded by lust. They think with their dikks and eyes because of porn. It’s lust, not love. Yeah the beauty standard in the mainstream media right now (movie, tv, ads, music industry etc) is still Eurocentric but I think when it comes to men in particular, porn plays a bigger role of influence. Remember men are much more visual and sexual than Women. I think the racial and physical tastes of women in men are more influenced by what’s popular in society, music, sports, television, cultural trends and cinema.
As for dating shows… It actually makes perfect sense. I mean producers of a reality tv dating show culturally and specifically geared for Black Audiences would never pick contestants who are legit

like Kkk/Altright/maga/neonazi cacs. They are a bad fit lol. Of course mainstream reality dating shows will prefer people who are very compatible with white folks or at least not biased against them. They don’t want to make white folks look bad and undesirable.