If space launch danger zones have to be as extensive as this then maybe they need to happen much, much farther away from intense airway systems than the busy caribbean - ie mid Pacific perhaps (eg Diego Garcia?)
May I suggest you first brush up on geography (Diego Garcia is in the Indian Ocean) and, if launching at least weekly, close to their supply of methane and LOX as well as their cargo - not the other side of the world.
It should be noted however that SpaceX are also constructing a major launch complex at Canaveral for east coast launches and Vandenberg for west.
https://en.wikipedia.org/wiki/SpaceX_facilities