Sure thing.
Prior to the Supreme Court ruling, a majority of states already had marriage equality on the books. Sure, there were a few holdouts still, but compare that situation to even 20 years ago. 1-2 states had it on the books, sure, but the fact is a majority of states had put it on the books only by outreach and education. I think this route should've been followed a bit longer than it was. Changing minds changes laws.
As far as race is concerned, the 1960's civil rights movements were primarily based on outreach. To churches, politicians, schools, etc. Sure, you had a handful of cases like Brown v. BoE that happened, but honestly, the LGBT community isn't dealing with anything like Jim Crow. The reason litigation needed to happen with racial issues is the fact we had laws on the books, on a federal level, that basically made all other approaches impossible. The LGBT movement was winning long before they started dragging a few holdouts into court to ruin them financially, publically shame them, and in some cases, put them in a cell. All over a fucking cake. We aren't talking segregated schools and facilities. We aren't talking burning crosses in a front yard. Just one well meaning but ignorant person saying "sorry, I can't do that. It violates my beliefs." Can I walk into a halal butcher shop and demand a pork chop? Or an Indian restaurant and demand a cheese burger? The guy even offered to make them any other kind of cake. He refused service not because they were gay, but because he thought marriage was primarily a religious institution.
It sure doesn't help the PR battle, and really only validates the fear of the bigots.
EDIT:
http://www.pewforum.org/2015/06/26/same-sex-marriage-state-by-state/ turns out in 1995, no states allowed gay marriage, and even 10 years ago, a majority actually had a ban on it. Fast forward to 2014, only 15 hold outs, and a few of them were already in the process of legalization. Sure, you can't patiently wait for the majority to give you rights, but you can make yourself the majority and give yourself rights via education and outreach. Not bad for just a decade.