Not that it materially changes your point, but I would not be surprised if Starlink reaches 200 million customers at some point, even with my other comment about Musk personally being increasingly seen as a political security risk, the increasing distrust of globalisation, and the new trend of sovereign-shoring.
$8T/(unreasonably high 50 P/E)/200M customers/12 months = $66.67 profit (not revenue) per customer per month.
The moment Musk's reality distortion bubble stops functioning, his brands' PE ratios are likely to revert to the 5-15 levels of comparable businesses.