is Steem ready to accept the millions of YouTubers being ejected from that website right now?
There are not millions of crypto youtubers, but to accept them all for free right now, no. 3 Steem is not expensive to create an account if free claimed ones run out.
Youtube ran at a loss for over a decade with google funding it to become what it is today, obviously Steemit does not have that kind of money. The wait time to create an account has been lowered as stated in a steemitblog post.
You can still post 3-4 times and vote 10 times even with 0 SP, the 15 SP delegation is just a bonus and soon we will have resource credit delegation which will make it possible for anyone with no cost to use Steem for free.
3speak has guest accounts, steempeak has guest accounts and both offer account creation, so I really think you're either intentionally overlooking those facts or pumping the numbers because it helps your narrative.
Not even gonna get into everything I think is wrong with Bitchute but they are miles behind something like Steem.