Just another of the all too common instances of prejudice justified with flimsy and unsubstantiable excuses.
"It's unnatural!"
Unnatural like; wearing clothes? living in houses? air travel? fire?
Here's a headline for the bigoted, more than a thousand species of animal have been recorded engaging in Homosexual behaviour.
There's an exhibit called "Against Nature?" in Oslo detailing it.
"It's disgusting!"
There is nothing that Homosexual or Bisexual people do which heterosexual couples don't. So if you ban one I guess you'll have to ban sex entirely for the same reasons. Lets see how long your society of Bigotry survives then. The really disgusting thing is the attitude these hypocrites display.
"It's Immoral?"
Why? What is immoral about love? What is immoral about wanting the freedom to live as you are without harming others?
No one seeking recognition as a human being and striving for equality with their peers is trying to force Heterosexual people to engage in Homosexual acts. Yet people like this try and force Homosexual people to engage in Heterosexual acts? That is Immoral.