I thought Islam was a religion, not a race? Could you perhaps enlighten us by what you mean by racism?

At any rate, if you haven't read the Quran yet and are confused with what OP's is quoting, you can educate yourself at Quran.com. In OPs second video, he quotes 23:5 which clearly states "Successful indeed are the believers... those who guard their chastity except with their wives or those ˹bondwomen˺ in their possession..." Which is to say, a believer should be chaste except when with their wives or female slaves. And yes, there is no mention on an age restriction for slaves, so OPs video is correct.