That would be be nice, but I'm afraid that homophobia is alive and well in the Western world. In my state, someone recently conducted a poll and found that 55% of locals are against including sexual orientation in sex-ed classes, because they don't believe in teaching that homosexuality is a valid "lifestyle."
And there are still plenty of cheaters who use the excuse that "I had to cheat on my wife and kids because I'm gay, and that's what gay people do." Of course, there are tons of gay people out there who come out before getting married to a person who isn't of their preferred gender, or, if they realize that they are gay while in a hetero relationship, choose to be honest and leave their original partner. But at least in the States there is an attitude that "alternative" forms of sexuality are associated with adultery, and the idea of a "cover marriage" is a big part of why. We had a big politician in the States come out as gay recently -- only, he wasn't just gay, he was cheating on his wife with an employee to whom he'd given major perks because he was sleeping with him. Similar story for a married religious leader who wrote off an exposed relationship with a gay hustler as "sex addiction." A lot of people here equate being gay with "bad behavior."