Agree with @danhak, this has less to do with gentrification and more about how they are affecting the community and businesses. Venice boardwalk is a major tourist attraction for the westside. Where snap is located, used to be filled with eateries, bars and other various shops. All the buildings that snapchat are taking have made these areas a ghost town.
They could easily move to Playa Vista literally 10 minutes away, where they are developing a huge business park area and where FB is moving in. I can understand why the residents there are upset.