Ordinarily, nobody should care that a homosexual is in the closet, because a person's sexuality is their own private matter, and when to come out should be a person's own choice that, even in 2022, is still fraught with peril and fear.
But when a closeted homosexual is an elected official and a member of a political party that has consistently pursued the establishment of laws, policies, and general social behavior to discriminate against and degradate the LGBTQ population, then yeah, I fucking care that a closeted homosexual is living a double, and hypocritical, life. I say that not knowing Cawthorn's public stance or voting record when it comes to LGBTQ issues, but there have been several elected Republican officials in the past who were outed as gay after a career of opposing gay rights.
If you've never seen the HBO documentary Outrage, I recommend it.
Now, fucking a staffer, gay or straight, is a whole other matter, and I enjoy watching that one play out.