That is the problem Keith. Homosexuals are human beings and human beings are not looking for 'equality', they are looking for the best possible deal they can squeeze out of the system.
Say that when gay people have all the same rights as you. Until then, you are the one who isn't looking for equality; you are looking for the government to reserve a civil institution for straights only as a special privilege for those with your sense of "traditional" values.
If homosexuals can exploit the tidal wave of frothing hysteria around the 'trendy issue for 2015' i.e. 'gay marriage' then they will ride it for every buck its worth.
First, it's irrational to deny someone equality on the bass they may ask for more. Say 'no' when they ask for more. Second, historically this is not the case in countries which legalize same-sex marriage. We've had it in Canada for years, and the only special consideration gay people are really given over straight people is if someone beats the living shit out of a gay person, there is a possibility it will be considered a hate crime (if the person's sexual orientation was demonstrably the motive for the crime).