I'm not offended, and there is no right/wrong answer, except that two people aren't representative of any group - that's basic stereotyping. But I am curious to know whether they just aren't interested in sport (my wife isn't), or whether they are worried about the homophobic chanting which is...
Are you more in touch with what it's like to be gay?
Why do you think a football ground is the last place gay men would go? Why wouldn't they be interested in sport?