Starlink is already making more money than it costs to expand and operate, you are wrong.
Honestly, there are no realistic, reliable figures either way. There are plenty of guesstimates, and they show a profit now, but that with a very significant investment in growth. And that investment comes in large part from external sources, which means that when the happy time ends and the satellites fail at the same rate as they're currently launches, they need to either make WAY more money, or rely on external funding.
and counter to your beliefs over the next 10 years I'd wager the starlink network will balloon to many times its current size, 20,000 plus satellites
Definitely, they're on track to stabilize at around 36.000 with the current launch cadence. That's where every new satellite is a replacement. But that doesn't count money, which is the problem, and will be more of a problem when expenses replace growth.
and that cost will continue to decrease as the Falcon 9 program continues to improve and as starship becomes operational over the next few years.
Eh, I wouldn't be too sure of that. Falcon 9 costs haven't gone down in years. Falcon Heavy is supposed to be cheaper per ton, yet somehow is almost never used for Starlink or anything else. Starship isn't even projected to be cheaper than Falcon 9 (I except in what are basically ads).