You can try to equate humans to computers all day, and you can even pass laws that says they’re the same thing. That does not make it true. A company using software to profit off data they have not licensed (whether it’s public or not does not matter! That is not how copyright law works!) is theft.
Please try to sell DVDs of markiplier’s publicaly available YouTube content and tell people how you’re allowed to because it’s publicaly available.