Nobody is preventing anything. Starlink went threw all the process to get regulated and now wants to slightly lower in the range they can operate in. It does n

Nobody is preventing anything. Starlink went threw all the process to get regulated and now wants to slightly lower in the range they can operate in. It does not inherently prevent anybody else from operating. In every orbit their are many different sats and sat providers operating. Amazon claims are entirely based on their inability to run their theoretical system when SpaceX is there. If their system is that fragile, then maybe they shouldn't be allowed to launch it in the first place. SpaceX could have equally claimed the planned Amazon system was interfering with them, but they didn't.