Question

Why is Hollingsworth v. Perry considered Judicial Activism?

Please, I need help. I know what the case is and I also know what Judicial Activism is. I just need help.
Ms. Sue
Most laws forbade same sex marriages. For this California court to proclaim that they were legal was going out on a limb. It was obviously judicial activism.

https://en.wikipedia.org/wiki/Hollingsworth_v._Perry