For people saying no one would be hurt by an easy mode: wrong. Lots of people love being sunbros that help carry bad players through the game. Adding an easy mode or tourist mode would make a lot of people less likely to summon, which would hurt the experience of the long-time sunbro fan, who will now have to wait much longer in between being summoned by other players
If they made the game strictly single player I would bet some would still argue against it. Maybe it's an elitist thing. Some still mock Forza for having a rewind function in it even though it's completely optional and doesn't impact anyone else.
I agree, not every game needs to be made for everyone. I'm still not a very good chess player, they do offer different levels of competitors and tutorials which is great but the integrity of the game is still intact. I'm not sure what the Dark Souls games would be like if they made an easy mode, it would kind of take away the integrity of those games I fear.