Some people are salty that Tanjiru was saved and stayed TRUE TO HIS CHARACTER when rejected eternal life and demon powers, he was, an honest good guy to the very end and I admire that!!! what the edgy people wanted was evil transformation and dark powers... I recommend getting out of here and go read bleach, black clover or tokyo ghoul, you'll get all the edge of the world there and characters won't give a fuck about the nature of their powers as long as they get stronger.
Seeing Michael Jackson practically begging to stay and clinging to life but getting rejected anyway (Tanjirou never doubted!!!) was satisfying, that fucker didn't deserve any better, from the start, he was a coward and he died like one too.