The anti-gay groups just cannot leave it alone. If they win this one, which doesn't seem likely at this point, BUT, if they do, they will be back for the rest of our rights later. Do not doubt it for a second.
Exactly what rights are they after next?
Most of the same groups also oppose civil unions/domestic partnerships, would seek to re-impose laws banning oral and anal sex, cross-dressing, hate crime laws and employment discrimination laws. Do you remember what Prop 6 was all about?
You may not know it, but within my lifetime states have criminalized dancing with the same gender, gathering in bars which cater to gays and a whole host of such laws.
That is the religious right's agenda.
