I can't tell if this is a joke or not, so I'm going to treat it as if you are actually being serious.
The preference to not have one's genitals, hands, and/or fingers drenched in blood does not mean that one is on a power trip or playing mind games. You might be referring to one very specific person or situation, but it is a wild and reckless generalization to villainize a preference about wanting to be covered in blood.
This was an absurd statement, and I don't want the lurkers to think that they are not allowed to have whatever preferences they choose.
Hell, I have a period and I don't like period sex. So I can't see why someone without a period wouldn't be allowed to mind or have to be okay with it.
That being said, there are ways around things. Making out like teens, [some] clothes on, lots of grinding, or naked with a menstrual cup but just no inner action. Stay strictly at like...base 3. Hey, it works (depending on the menstrual tools you use) and then everyone is happy.
But like, man, I find period sex real gross so yeah