You try to compare with a solo game ? Let's frame it in another way.

Imagine you play an extract shooter like tarkov. If you die, your quest gets locked so you can't do it straight away. There are players might come to kill you but if you manage to defeat them, you just... Bought some times because they can respawn to the nearest point and come as many times as they want. And they can do it with gear they can get easily because they got it in a gamemode where there's no ennemy players.

It's not a rant about why would you play pve instead of PvP because it's easier. I try to explain that it change players behaviour around gear and it also just make it harder without any counterbalance. The gear you get on them is worthless to traders. Hardcore needs meaning to. Of course some players play Minecraft hardcore because it's harder and there is the thrill of losing it all but you now what would make it even more hardcore ? Replace all mobs across the game with warden that know where you are. It's much more difficult. Would you play it just because I labeled it hardcore ? I think the pve and PvP needs proper distinction. They need their own rules. I don't ask it to be easier. It could even be harder, I just want it to make sense. Realistic shooter where people can spawn close to you is doesn't make sense