I think my previous comment was a little unreadable, so I'll try again.

I think the joys and fears of subjective sentient experience are inherently valuable. Which means people (or any sentient subject) is inherently valuable.

But sentient experiences are only ever witnessed by one sentient perspective. They are not shared between subjects.

Which means your subjective experiences are not inherently valuable to me, and mine aren't inherently valuable to you. Which in turn means that YOU aren't inherently valuable to ME and I'M not inherently valuable to YOU.

In other words, there is no perspective in the universe, other than our own, for which our experiences are inherently valuable.

I'm not sure I understand your distinction between delusions and facts.

If two people witness an event, and remember it differently, which one is delusional?

Delusion only becomes a useful concept when you bring in enough additional parties to constitute a majority of people who remember things the same way. Or if one person's memory turns out to be a better predictor of future observations. For example, if I remember locking the door, and you are pretty sure I didn't lock the door, and we get home, and indeed the door is unlocked.

But the joys and fears of subjective sentient experience are valueable regardless of whether they are factual or delusory. The experience itself is always real. And the experience itself is where all inherent value comes from.