And while we're at it, let's keep the smokers out of our workplaces too, since as it happens, smokers and homosexual men lose a similar amount of life expectancy: On average, homosexual men die 8 to 20 years prematurely, while smokers die 13 years prematurely on average.
Actually employers are already barring smokers and it's completely legal for employers to do so. They can actually fire you for smoking at home not just at work. Companies are doing this because they don't want to bear the costs of smokers on their health plans.
Smokers have to pay a higher premium for life insurance. Would itnot be fair to so the same for gays?