Sure, but much like the high seas, Space-X trying to acquire the space version of a "modern missile destroyer" will likely violate many laws, so their ability t

Sure, but much like the high seas, Space-X trying to acquire the space version of a "modern missile destroyer" will likely violate many laws, so their ability to "defend themselves" will be fairly limited. Could they on paper start launching satellite destroying drones into space? Yes. Would the US military and political apparatus ever allow them to do so? Absolutely not (unless they're launching them FOR the government).