That does not mean homosexuality is unnatural or that they should not be allowed to get married.Animals aren't intelligent enough - surely that is obvious.
Of course men and women were designed, either by God or Nature - take your pick.
In what way are couples who want the same rights and freedoms as everyone else abusing the system?Homosexuals should not get married because it is abusing the system for financial gain, is not what marriage was intended for and distorts the fabric of society.
And just to point out the obvious, but alcohol is far more damaging to society then same sex marriage could ever be. Does that mean we should ban it as well?