Lets cool down a bit. Falcon 9 launches cost much more then 'just the fuel'. Estimated launch price is still 10-20 million $. The Upper stage is an expensive thing to build. Operations cost are also not that low. Fuel cost are only like a couple 100k$.
China is deftly building something. Russia doesn't have a snowball chance in hell of building something like Starlink.
A state-funded competitor could come up though. China for instance may want their own satellite internet for strategic reasons, and fund that. I am sure Russia would be interested too. This in turn, will pay for development of a reusable rocket program.