What if Ralsei was the main "boss" Darkner of the closet?

Deltarune spoilers obviously, for chapters 3 and above.

What I mean by "main boss Darkner", I mean Darkners like Queen, Tenna, Gerson(?), and Flowery especially. I'm not counting that King guy from Chapter one because he doesn't do much and isn't nearly as present as everyone else I've mentioned... And speaking of presence...

These Darkners (Gerson, Tenna, Queen) are just as important to people in the light world as they are in the dark world, hence why they have so much power in the dark world and why they're almost always present somehow. I believe King doesn't have that same sorta power, as why would any lightners bother paying any more attention to him than anyone else? Even I forgot to talk to him in chapter 5.

Gerson, Queen, Tenna, and Flowery all love and attention put into them, but I'll focus more on Tenna and Flowery here. Tenna was used all the time back in the day and watched by many (Holidays and Dreemurrs), being pretty important to the Dreemurrs especially. Flowery is literally in the center of the room in Flower King. Both of these "main"/"boss" Darkners know their lightners very well, and they're powerful in the dark world because of how much love and attention and importance they meant and received in the light world... I hope you get the point.

Now, what does this have to do with Ralsei?

I dunno, I just wanted to say that he's definitely one of those main Darkners and that MF is definitely still hiding a shit ton of power, not just knowledge. He was born out of the grand fountain in the closet, which is apparently so bland that it acts like a canvas, where any Darkner can hang out there. He can hang out in any dark world without consequences because he comes from the dark world where anyone can hang out. The blank one. The one that's darker than dark.

I believe the main reason why Ralsei tells Susie that "there are specific kinds of darknesses" or some shit is because that's just his way of telling her that its not that they can't bring Gerson or the flowers, its that they shouldn't. Imagine Susie carrying Gerson's ashes across town and into the school at night like what. Also that he might look fucked up or weaker in Castle Town, so I trust him on that. Ralsei might also just hate the flowers ngl.

Anyways theory yap summary: Ralsei is the main darkner of the Grand Fountain. He is the prince of the dark, a prince of nothing (hence why no light world counterpart), and he's intentionally nerfing himself to make the adventure harder or something. He's such a strange character after straight up using a fire spell on instinct against a giant shuriken??? And doesn't he technically use fire as an ACT against one of the enemies in chapter 4 anyways? Why are people acting so surprised?

The real question is, who (or what) made the Grand Fountain in the first place, and who gave birth to Ralsei?

Update:

So, um, I found this video.

I like like the video.