CCA has produced a couple of articles on MPA's that deserve review (The ABC's of MPA's, Part 1 and Part 2).
Some of the material is quite thought provoking. One of the topics, Punishing the Innocent, refers to sport diving as a 'recreational threat' while angling is protrayed as almost environmentally friendly. Funny...most diving training agencies actively promote "look but DO NOT touch." Taking photos rather than taking game. Some agencies offer training specifically on these subjects, e.g. PADI's AWARE diver specialty courses.
MPA's are being created to preserve underwater environments. They may limit access, but by providing a undisturbed environment they provide living and spawning grounds for future generations of fish. Anglers aren't just 'fishing', many are also boating--with the associated noise and petrochemical pollution. CCA claims that there isn't sufficient scientific evidence to back MPA's. Can we afford to gamble like that? Why not be proactive and take preventative measures?
MPA's provide space for fish to hatch, grow, and mature. They provide part of the solution to avoid what could happen in the Tiny Fish PSA. How many anglers want to be catching a fish that is only a couple of inches long?
MPA's are not the Holy Grail that you seem to be blindly chasing. The last part of your statement tries to make people believe that these areas that will be closed are the nurseries for the oceans, when in fact, most eggs released by pelagic fishes tend to drift on the currents in the open ocean. These fish are NOT salmon, they do not lay their eggs in the gravel on the bottom for protection. Many of the inshore fishes as well release their eggs which are then carried off by the currents of the ocean. In the currents, they drift around with kelp and other flotsam until the juveniles are ready to return to the near-shore areas, making the entire ocean a nursery.
Instead of focusing on the destruction caused by responsible recreational and commercial fisherman, look into stopping the constant rape and molestation of our seas (drift gill nets, longlines, and bottom trawling). Fishermen are not the hard-headed neanderthals that environmentalists believe, most understand the value of having the ocean's ecosystem protected. But these protections must be rational. There is still no scientific evidence that MPA's actually benefit the ocean as a whole. Most fishermen are happy to preserve the ocean as it is, instead of harvesting everything possible. Many billfish tournaments are now catch and release, a program scientifically researched and proven to reduce the mortality of the fishes involved. You do not see the wanton destruction of fishes of generations past.
Please take time to examine the big picture about MPA's, instead of jumping on the eco-bandwagon indiscriminately. THANK YOU