IMO legal rights and priveleges are just smokescreens. For people who scoff at the importance of this issue, make no mistake. Next to the "War for Oil", this is the second most important issue on college campuses and with liberals across the country. By framing it as a "civil rights struggle," they are setting up the next battle. Specifically, a battle against churches and religion in general.
By forcing the legality of gay "marriage" upon our country, in spite of the fact that it has been voted against everywhere a public vote as been allowed, they will be able to file lawsuits against any church who doesn't comply. In Canada pastors are not allowed to preach against homosexuality from the pulpit. They can only read the verses on that topic verbatim from the Bible. Already, some have been put on trial. The gay marriage issue is HUGE, and that is why so much effort and money is being spent in trying to force it into become a reality.
This issue has layers of smokescreens in front of it. I wish more Americans could look past them and consider the long-term consequences.
I don't see how churches in the USA could ever be forced (via the legal system) to perform marriage rites to any other couple they don't wish to. I mean, the Catholic church has always been free to exclude divorcees, for example, from Catholic marriage. They won't marry two non-Catholics at all.
Frankly, I think the "they'll make your church marry gays" argument is bunk because there are plenty of couples that do meet the governmental definition but don't meet a myriad religious requirements - yet they cannot sue for a marriage in any particular church. The US is not Canada (thank God!) and religion has always been assured of far more freedom from government interference than in other countries.