Why are STD higher in gay couples than heterosexuals?

Bc unlike straight ppl they actually get laid

Also there's no risk of pregnancy, usually, so they may be less likely to use protection.

It's because there are more blood vessels in the anus than in the vagina and that, compared to a lack of natural lubrication and delicate tissue makes the spread of infection more likely.

there's no risk of pregnancy so you're more likely to not use protection with same sex partners. also, anal sex is more likely to spread an std than vaginal

housing insecurity, prison, poor health care access also make people more vulnerable

Because sex ed is heterocentric. Gay people grow up less knowledgeable than straight people when it comes to safe sex.

Allegedly: higher libido, higher body count, more likely to be promiscuous, more impulsive, no risk of pregnancy.