You're putting words into my mouth. It does not affect me, therefore, I am not partaking in ridiculous debates against it. Live and let live.<quoted text>
By that reasoning how would plural marriage affect you or me? Or a marriage of siblings? If the only deciding factor is "it doesn't affect me", then any number of consenting adult relationships could be designated "marriage". What then is the point of recognizing it at all then, if marriage means anything and everything?
Honestly, if siblings want to marry, so be it. It happens anyways. It is illegal, however, because of the clear health problems that can be passed down to the child through incestuous intercourse. There are no such threats in gay marriage.
I feel you are arguing from this conservative, "the sacred definition of marriage" bullshit that is getting old. Times change--get over it.