We most certainly do vote on people's behaviors (that you erroneously call "rights") I think what you need is a dictionary and a lesson on the difference between verbs and nouns. One is an action and the other is a state of being.
1. And what of guns in the home?
Do we have a referrendum " Do you approve of parents being allowed to keep guns in their home? The majority says yes or no.....case closed?
2. "Do you approve of parents being allowed to practice Islam?" The majority says 'yes or no' and 'case closed'?
If not, why not? What right couldn't be stripped from entire societies with a simple majority vote?
1. Yes, in a gun safe, locked and out of reach of a child.
2. Yes, as long as it does not result in physical harm to a child. That's the gold standard. Before you get started, passively refusing to participate in gay marriage does nobody any harm.
See how easy this is? Judges will have such an easy job once children's needs become clearly dominant in law to adult's wants. In fact, I dare say their lives will be easier all around. Imagine just one filter before you where children are involved and always being able to ask just one question "does this activity proposed before me benefit the child's needs ultimately?". If the answer is "yes", it's case closed. If the answer is questionable, then a trial is held for a jury to decide. Maybe that's also something to include: any case involving children's interest must ALWAYS be held by a jury panel.