Perceptions and beliefs can be changed by education. HIV/Aids are not a predominantly gay diseases and homosexuals are not paedophiles. Yet, we get both in abuse from opposing fans, not via chants I might add, but examples have been given by our fans when outside of grounds.
There's an article in the latest edition of the Football Supporters Federation newsletter.
http://fsf.org.uk/latest-news/view/theres-no-place-for-homophobic-abuse-at-football