This is precisely the reason why a public health based argument will succeed. Smoking cigarettes reduces life expectancy by only six years, and look at all the measures that have been taken to curb cigarette use. But according to the International Journal of Epidemiology, homosexuals who engage in anal sex reduce their life expectancy by eight to 20 years.
If anal sex is a greater risk to public health than cigarette smoking, why aren't the same measures being used to curb its practice?
How about a tax?
Maybe $5.00 a "pack".