the same consciousness that doesn't really fit anywhere in our purely quantitative descriptions of the universe.

How does it not fit in our quantitative descriptions? We can measure its activity. It behaves differently when in a coma, or when thinking about different things, or when dead. We can grow neurons and form connections with them outside the brain to do computations. We can't make anything as complex as the brain yet obviously, but we understand how it functions. What part of it doesn't fit in a perfectly quantitative description.

I'd love for some mystical thing to exist, but literally every mystical thing people have believed for tens of thousands of years has been wrong. Why should we expect any different here? Lightning isn't caused by spirits in the mountains dancing, a god throwing lightning bolts, or anything else mystical. We can't fully describe the mechanisms at work perfectly, but that doesn't mean we don't understand it. We could assume it's something mystical into the gaps because it sounds cool, but theres no reason to think it isn't something material that can be learned.

that would include dolphins

This is literally the closest form of consciousness to our own - the easiest and most obvious case. They weren't actually asking if dolphins would count, they're asking at what point it counts as consciousness. The ones you need to answer are things like tardigrades, bacteria and viruses, or nonphysical forms of consciousness. After all, you're seriously claiming that the scientific definition of observation is observation by a conscious mind, not interaction with another aspect of the universe, so why don't we consider all the nonfalsifiables? Do ghosts collapse the quantum superposition?

Why it's weird is because it's assuming the universe is choosing what level is conscious. As you say, we're pretty sure they're conscious. How do we know that? Brain scans and watching their behavior. What happens to something without a brain but still with sensors? Is that somehow conscious? What about a brain but much less complex? Why is the universe deciding how to behave based on this? It'd be really outlandish to expect this behavior from the universe, which isn't a creature and just following a set of rules.

It's a much simpler explanation that interactions that require information force that information to collapse. We don't need any strange justifications or anything deciding what level becomes conscious, which is just a word we made up several hundred years ago and is meaningless to the universe. Consciousness is just a series of impulses in a system, a system which can go wrong in many ways and is not a fundamental thing.

Idk why that is so hard for you to even ponder

I can obviously ponder it. I've shown that. It's just that there's no reason to believe it's any more real than Harry Potter is. It may make you feel nice, but it doesn't do anything. If consciousness can't be defined by whoever is positing the idea then it's not useful to consider.

So string theory isn't science either show me where string theory has been proven in any sort of way

String theory is not really, no. It's theoretical physics. There are experiments that were designed to test it and they all have failed. String theory is a useful mathematical model to predict some results, but it's not more than that. It's also almost certainly wrong, but it can still be useful. It's also almost certainly wrong, because it fails to make new predictions that come true. It can just adapt to give the correct result after we know what it should be. It's useful, but it doesn't make it true.

What does it even mean for particles to have consciousness? What would that even mean for that term anymore? How can they be conscious without any ability to think? If you stretch it to particles (so essentially everything) to just say they interact with things, then the term is meaningless.

It's similar to the god of the gaps argument. You can always push an idea into further unknowns when previous beliefs are disproven. Just because the thing that's left can't be disproven doesn't mean it's any more valid. I can make up any number of equally valid hypotheses that cant be tested, but I don't expect you to entertain them. We don't entertain the idea that the majority of gods exist (or, in many of our cases, any of them). If we took the time to entertain every possible idea we could have we'd sit around all day and do nothing else. There's literally infinite ways to explain this if you allow every supernatural explanation in.

you can check out for data that I posted on another comment as well

Data means facts and statistics, not just people talking about things. The data we have is things like the double slit experiment. You can have different hypotheses to explain the data, but hypotheses themselves aren't data. Also, pedantic, but a theory is something that's been tested and withstood scrutiny, and a hypothesis is a potential explanation that hasn't withstood scrutiny yet).

Edit: I was going to check out the "Ted Talk" you linked, but it's the same two hour podcast, not a Ted Talk. That word also has a meaning, and it isn't that. I may put it on in the background, but you really seem to be (purposefully?) using words incorrectly. If it is on purpose, please stop. It only works to slow things down.

Edit 2: This guy's definition of an observer (which he also seems to think of as conscious and undefined in QM, but it is defined an has nothing to do with consciousness) in the video is a step in a Markov chain which is dependent on previous results, which is the definition of a Markov chain. He's also seemingly implying a Markov chain is something fundamental, but it's no more fundamental than any other statistical model of events.