That's a nice quip, but really?

The most attractive silo is the easiest and best place to cooperate; that's where everyone is, and everything works well inside the silo. We're not stuck; we eagerly await the next even bigger and better silo.

To get beyond quip you have to make the much harder case that cooperating on the infrastructure of cooperation is of/in the interest of all. It's that cooperation that goes against the grain in a silo (unless and to some extent if the silo itself invites cooperation, which is what makes Wikimedia projects such great silos and venues for cooperation).