According to this article, the take home rate for #YouTubers in the most lucrative niche (finance) is between $8.00 and $20 per 1000 views, meaning 5 million - 8.5 million views would net you 1 BTC, that's before you pay your income taxes

So no, your favourite YouTuber does not have 1 #Bitcoin, unless they shilled you down the BlockFi, Celsius, FTX, BiByt link funnel and managed to withdraw their funds in time 

https://isthischannelmonetized.com/youtube-cpm/#you-tube-rpm-and-cpm-rates-by-category