First of all, no one is asking for more rights for gays than for others.
Second of all, whatever "destruction" happens due to straights cheating on their spouses with same-sex partners has nothing to do with gay marriage.
Will homosexuals be limited to marriage to the same sex? If not, they are asking for "additional" rights, not the same rights.
Incorrect, as usual.
Marriage law is gender-neutral, a contract between two equal partners. Consequently marriage laws are not being changed, and no additional rights requested, simply an acknowledgement of existing equal access rights as mandated by the 14th Amendment.
Marriage is not gender neutral. Redefining marriage means that you are more interested in deceit than having a lawful binding contract.