Read this book it will tell you the opposite!
Where Death Delight: Adventures in Courtroom Medicine
by Marshall Houts
The author a pioneer in forensic medicine. He will tell you that he can tell by the level of violence presented in a murder scene if it involved gay relationship jealousy. Higher the violence the more likely to be true!
I don’t doubt male gay domestic violence particularly awful when it happens.
It’s just a more rare occurrence, in raw numbers.
Basically, we’re talking about two different things: (1) how bad it is when it happens (what you posted) vs. (2) how often it happens (what I posted).