You don't have to worry. Feminism enabled eugenics 2.0, because previously the only way these men could reproduce was having resource providing privileges (the woman had a tougher time getting jobs, and the social norm was to become a homemaker and marry a man who provided for the home).
In today's world of Cheryl Sandberg alpha women who can pay their own way with jobs, they only open their legs now if the man makes significantly more money or is insanely gorgeous.
Both conditions excluded by the betas, all of the /r9k/ types. The downsides are that this is behind the reason the white birthrate is drastically declining: white women who are anything on the looks scale of a 5-7 average will not fuck average men, they have the power of Tinder, online dating, etc, to find 500 men in a week within a 100-mile radius willing to come to them, who they fuck and think maybe they'll capture him "I don't do ONS" yeah whatever you do it for the guy who is 3 points above you on the looks scale, delusional cunt.
Meanwhile, all the men who are 5-7, even a lot of 8's on the looks scale, are all jerking off to hot women in porn because it beats the willing hambeasts who are 4 and lower.
It's a good time to be a Chad, or be rich and average; if you're the dual loser of both ugly and not wealthy, you can sate yourself for five minutes with some bullshit MGTOW video, but you'll still be jerking off to porn, and still be bitter when the average looking girl is with the new "Chad of the Weekend."
Give it 30 years, and the young white betas will be gone; just old ones. You'll have the people who are reproducing en masse: coalburners fucking "muh jacked alpha nigga", you'll have the few whites who were stacy's who got knocked up by Chad and are now single moms on Tinder supported by the state, you'll have even fewer real couples together with families and kids.
The future is not very white, don't worry OP; they'll be gone soon enough.