Yes. I agree, there are no strong arguments against SSM, and therefore I support it. Marriage is good for society.Time for everybody to face the fact there just isn't a good, rational argument against gay marriage.
But as far as "the time has come", the time has come and passed for you to offer compelling arguments FOR it, not for anyone else to offer arguments against it.
The burden of making this social change falls on you, not us. You want the change. Most people are content with the status quo.
So, give us good arguments FOR it, don't expect us to argue against it. Most of us have no arguments against it or for it.