Been reading Kipling all my life and haven't found any homosexuality in "Follow me Home" or indeed any others. It's strictly about the powerful comradeship between men, especially soldiers. Anyone who has been in the army can tell you the ties you form with your mates are very strong.
Anyway, doubt there are really very many folk songs, if at all, about homosexuality. Do remember that homosexuality only become openly accepted fairly recently. It used to be illegal and very much a taboo.