If Musk and SpaceX are serious about putting 1 million datacenter satellites into space, then they are not serious about Mars.

You cannot simultaneously build and launch 10’s of thousands of Starships to deliver 1 million tons of equipment and supplies bound to Mars while also committing to launching 10’s of thousands of Starships to orbit full of satellites.

They would need to quadruple their launch rate, and half of those launches would be Starships bound for Mars, the vast majority of which would never return.

How many Falcon9’s have ever been built? It is incredible to say you can build that many rockets and use up that much fuel on any reasonable time scale. You might as well say the Tesla Roadster version 3 will be a Single Stage to Orbit rocket car.