Other half is funded by LPs. Yes, Musk is not putting his own money. He is the CEO but program is funded by LPs. I am not denying all innovation. Certainly, any joe-moe-schloe can't do it. But, talent pool is funded and operated in direct parternship with NASA scientists and staff. It's not that Starlink built it's own talent pool. My point is that he does not give credit whether it belongs and there are certainly more players in success of Starlink than Musk himself.
No. They could not even get fiber rolled out to the US. They started well but it requires immense power in local and federal level that takes decades (yes, decades) to accommodate.
Starlink would have then their focus out of search and AI which they clearly understand better and dominate.
Also, there is nothing innovative from Musk itself as far as starlink goes. More than half of research and implementation is funded by USG and Tax Payer funded rebates and concessions.