The articles say that all self-proclaimed homophobic men hooked to machines were responding sexually to male gay porn and naked bodies, but they were usually unaware of it.
People are on a sexual spectrum, the same as everyone is on a gender identity spectrum. In surveys where people were guaranteed anonymity, up to 85% of respondents admitted being sexually attracted to same-sex people in various percentages..2% of the time, 13% of the time, etc.
Few, however had acted on their attraction, or "come out" as gay. It's just that the current evangelic Christian religious view is that same sex attraction is "evil" so most people suppress, or ignore any feelings of attraction, the same as husbands and boyfriends learn to suppress reactions to other women.
In the late 1960s and early 1970s, young people were often like the Asians, with few distinctions between between gay, bi, or hetero love. People routinely had mass orgies between friends, with little concern for the gender of people involved, as the movie Zoolander spoofed so well!
