I haven’t pirated any actual software since the 1990s (too cowardly) but my hatred for Denuvo and the like burns with unsurpassed intensity. I will never knowingly buy a game that includes it. “Anti-tampering” indeed. I’m not sure if that shit should be legally allowed at all, but certainly not in ordinary mass-market PC games.
It does require you be online, and it is essentially a “rootkit.” Its malware features are more polite and better hidden than some of the worst of what has been tried before, but that just adds to the danger that it might be seen as acceptable by people who don’t know any better.