Defective Arguments

I have been arguing the question of gay marriage and other civil rights for the LBGT community for a number of years and, latest exchange on the blog included, have yet to find a single logic based argument presented against any of these rights.

It is not uncommon for folks, such as anonymous did, to take a "we just see it differently" approach. Frankly this is unacceptable when these questions still hang out there.

This country is not (supposed to be) a theocracy. As such, legislation should not be thwarted for religious reasons. So I open the floor up now. Do any of you out there have any logical arguments against such legislation? Arguments that don't involve your bible or generic, sweeping and unbased concepts such as breaking with tradition or unfounded scare tactics such as it opening the door to polygamy and beastiality?

Who out there has a logical reason to stand against these legislations? And if you don't, what the hell are you doing not fighting to get them in place?

Just a quick, deep question about life, or something close to it.