these men will turn to gay men for gratification
What?
Sure, there are bisexuals who like "a little bi on the fly", but that's because they're bisexual.
Your promiscuous heterosexual male won't "go gay" to get his rocks off. It doesn't work that way.
Where on earth did you ever get that idea?
We see a lot of heterosexual men who are addicted to sex
Really? Addicted? I've met one, one - as in "1", in my life that I knew about. Probably a few more I wasn't aware of, but you "see a lot"? Really? Addicted?
Where do you see these lots? How do you know? Addicted? Are you sure they don't just enjoy sex and pursue it?
Do you know what "addiction" means?
And, who are this "we" you speak of?
Sounds to me like another fundie preacher using over-exaggeration, fantasy, and lies to start off a sermon, following the typical fundie recipe.