Plenty games have you die with one hit https://tvtropes.org/pmwiki/pmwiki.php/Main/OneHitPointWonder
Many of those games don’t have difficulty sliders either. At least with Elden Ring there are ways to make your character sturdier if you wanted to. Fingerprint shield or greatshields in general are a great start. Stat dump in health. Wear heavy armor. Grind out as many levels as you need to. It works the same as any other game. It’s not like there’s a permanent game over where you have to start over. Dying and growing have been the point of these games and most games since like the beginning of gaming.
I didn’t realize until you pointed it out, but where the fuck is his ribcage?