Shouldn't Space X Starlink overtake all telecommunications companies?

Wouldn't the Space X starlink satellites from Elon Musk have to bankrupt all telecommunications companies in Germany and around the world? Especially Huawei technology completely throw out of the race because Space X can offer it much cheaper and faster?

In principle, that's true. But what bandwidth can they offer? How many connections can there be at the same time. How is it with the upload anyway? What about tunnels and subway? You could actually read in there.

The latency will be 20ms and that wherever you are in the world it is probably the same with the tunnels as with the radio masts