>Bitcoin used to be at $1, now it's at $1,xxx. What happened in between was a massive influx of newcomers.
That argument does not follow. An equivalent argument is:
"A house in San Francisco used to cost at $100k, now it costs $1000k. What happened was a massive influx of new people to San Francisco."
What happened is that the utility of a house in San Francisco changed and no one was willing to sell below $1000k.