The Fermi Paradox is no paradox at all. Seti can only detect a civilization like ours out to about 32 LY. That's just general radiation going out in all directions (google it). At best we could detect out to 2000 LY but that would have to be a REALLY strong RADAR type signal pointed directly at the receiver. They are not hiding, we are simply blind and deaf. SETI is basically a waste of money unless we are looking for really close neighbors. And on a galactic scale even 2000 LY is close.

All these other theories are based on a false assumption.

Rare Earth assumes there is something unique about Earth. There is nothing to indicate that the very same physical processes that happen here on Earth are any different than what goes on in the rest of the universe.

Dark Forest? See FP above. Just because we can't see them doesn't mean they are hiding. Though if they got to know us they might want to back away slowly.

Great Filter. Now there's a real possibility. Though even the entire galaxy has a Goldilocks zone. There are very large areas of the galaxy that probably have no life but our GZ is enormous. IIRC it starts about 1/3 of the way out from the galactic core and only ends at the very fringes. It's not just radiation but the chemical make up of the area. I forget the specifics.

Are we alone? The odds are very much against it. Can we detect them? The odds are also very much against it. And even if we keep on using RF for another thousand years that is still a very small window of opportunity to spot us. I use us as an example because we are basically looking for someone like us, technologically speaking.