> we can’t even figure out why humans have consciousness right now.

My uneducated guess is that it just means we save/remember (in a lossy way) inputs from our senses and then constantly decide what to do right now based on current and historical inputs, as well as contemplated future events.

I think the rest of our body greatly influences all of that as well, for example: we know running is healthy and we should do it, but we also decide not to run if we are busy, feel tired, or are in pain etc.

"the hard problem of consciousness" is not about "what are we conscious of", but rather: how is it possible to be conscious (i.e. experience qualia) at all?

I think you will like Robert Sapolski lectures on YouTube...