Only if you believe it's "necessary" to litigate against Christmas trees. These were not a bunch of nativity scenes. In my opinion, this rabbi has done Jews a major disservice by not tolerating these Christmas trees this year. He could have, and should have, made a simple request in a timely manner (ie, well before the trees went up), or requested the Menorah for next year.
This is obnoxious, and ill-timed, as our own "ISG" views Israel as the biggest threat to peace in the Middle East. Pick your battles better, Rabbi. How about threatening to sue CAIR?
Seems to me that this was a "hostage" lawsuit--do what I want, or the trees are goners. They assumed they'd get what they want. Instead, the hostage got shot. Goes to show--lawyers aren't as smart as everyone thinks they are.