As for lcm, his background has him as a "dumb jock" who was of insufficient skill to make it to the big leagues after college, who also was a Christian in college. From there, he went straight into twi full-time, with no pauses for a normal job or life like any normal adult. (That's why it was so hypocritical when he and vpw complained about other people who didn't show up for MORE time at twi and work MORE for free than they already did. Neither had any experience with real jobs and real lives, so didn't realize how unrealistic that was for people who want to keep a real job- and how unrealistic it would be to quit a job every 50 weeks to work for free at twi, then return home and look for a whole new job every year just to satisfy their unrealistic expectations.)
Anyway, despite having a Bachelors, lcm neither understood Psychology nor people. (Someone falling down and becoming incoherent isn't someone "going gooney-bird", and most laymen could at least give a BIT more accurate descriptions than that.) Lacking life experience outside college and twi, it would come as no surprise if he never matured past the varsity team in socialization- and it seems to me he did not. (Hey, just remembered, since he played on his college's varsity team, he exceeded vpw's athletics accomplishments ALSO.) So, where an athlete might have knee-jerk reactions to homosexuals and call them names and criticize them to other athletes, he would do exactly the same- and to twi, since he controlled the microphone there and had captive audiences every time he wanted to just monopolize free time for others.
Add to that how he was replaced in his marriage that way, and there's plenty to make lcm feel insecure about homosexuality right there. Rather than deal with that, he turned around and "kicked the dog" to make himself feel better. With continual reminders facing him, he kept lashing out and obsessing over homosexuality. Other than the above, there's nothing that he HIMSELF ever said or showed that said he was interested in other guys "that way". In the absence of any reason, it's possible to speculate without cause- but I'm more honest than that and won't do it. (I've seen others who won't stop there, though, although not as posters at the GSC that I know of.)
I know it's considered "de rigeur" to accuse guys who freak out about homosexuality to all do so solely because they're closet homosexuals or homosexuals in denial, but really, there's other possible reasons they may freak out as well. I'm not saying anyone's right to freak out, but those freaking out have reasons, whether or not anyone else would consider them GOOD reasons or any justification for freaking out.