The idea is not to make scraping impossible, but to make it expensive. A human doesn't make requests as fast as a bot, so the pretend human is still rate limited. Eventually, you need an account, and tracking of that also happens, and accounts matching specific patterns get purged, and so on. This will not stop scraping, but the point is not to stop it, but to make it expensive and slow. Eventually, expensive enough that it might be better off to not pretend to be a human, pay for a license, and then the arms race goes away.

Can defenses be good enough it's better to not even try to fight? It's a far harder question than wondering if a random bot can make a dozen requests pretending to be human