Because there are entrenched interests that not only want to impose SSM on America via the courts, but also want to make sure it is put in our face at all times. There are many who want to do this to make Christians feel uncomfortable.
It is fairly clear that the two judges who routinely perform same-sex "marriages" will not be recusing themselves from the federal case. It's also clear how the court will rule.
Yet, for some reason, we have to be forced to continue hearing about this, to continue seeing this, and restricting the rights of those who disagree. That's how you know it's not about equality, but more about a radical agenda that is designed to oppress expressions of faith
Good for them, they shouldn't. Thomas didn't recuse himself from the Obamacare case even though his wife was a member of a tea party group actively working against it.