

Unironically: the patriarchy. “Women and sex exist to serve men’s interests” thus, pleasuring a women in a manner most often associated with that of a man being pleasured by a women (oral sex aka blowjobs here) is ceding too much power to women.
They’re actually confused why women won’t touch them? Jesus.
My thoughts exactly.
Some digging on the source: https://www.truthorfiction.com/daughter-of-mlk-and-coretta-scott-king-posted-this-advice-as-the-next-six-months-are-going-to-get-real/
Regardless of who the original author is, the advice seems good.