Hey Einstein - ALPA facilitated (in more ways then one) all the outsourcing.
Pilot groups facilitated the outsourcing. ALPA is just a collection of resources. Those resources are used for whatever individual pilot groups want. If they choose to allow outsourcing, then that's their business. If they choose to reign it back in, again, that's their business. Individual pilot groups made the decision beginning in the late '80s to allow outsourcing of their flying in exchange for other things that they wanted, primarily rates of pay. It was a stupid decision, but hindsight is 20/20. Now it's up to those pilot groups to make the effort to recapture that flying. It won't happen all at once, but if they make the commitment to get it done, then the ALPA resources can be used to make it happen.