Before we start worrying about prying rotting tetras from cold dead hands - where did you guys get the dramatic fantasy there'd be 'fish raids"? They're talking about limiting the trade in exotic species of fish. This would kill the hobby slowly, although quicker than the chain stores are doing. It's a bad idea addressing a problem that largely isn't a real problem.
Leaving aside Napoleon's fate, he had an army and no one had drones. Fishkeepers are totally disorganized, have no moral high ground, and no organized lobbying power. We could fix that, with programs like CARES with its focus on conservation, but we probably won't.