Prove it's not true.<quoted text>
"Only people who have sexual insecurities or irrational beliefs find homosexuality objectionable."
You made that up. It doesn't count.
Provide us with several logical and reasonable arguments as to why ANYONE who is secure with their own sexuality would worry about someone else who can only be attracted to the same gender.
Do you think gay folks spend a great deal of time worrying about who you might want to marry?