Plot holes

In this post I am discussing the 2024 TV adaptation only.

While I mostly enjoyed the show there are a few plot holes that are bothering me, can anyone explain these away?

1. If the Trisolarans can unfold a protons extra dimensions and put massive structures inside it, then accelerate it close to the speed of light, then unfold it at the destination, why build space ships that travel through regular 3D space at 1% of the speed of light? Why not just put the spaceships inside a proton and travel to Earth at light speed?

2. If the Trisolarans are so advanced that they can create entire fleets of space ships and 3D print sentient AIs inside a proton etc, why not just build habitats in space and live in those? What is it about living on a planet's surface specifically that is such a necessary requirement for them?

3. If the Trisolarans have very long lifespans, why not use sophons to rapidly scout the solar systems local to them and find a suitable habitable planet that *doesn't* have sentient life on it that's able to fight back like Earth does? What makes Earth their only option?

4. If the Trisolarans can see/hear all communications on Earth with the sophons, how could they possibly have gone so long without realizing humans can lie?

5. What possible strategic value could there be in the "you are bugs" broadcast? It seems all it could do is galvanize the global resistance against the Trisolaran

6. If the answer to 5 is that the Trisolarans are so much more advanced that nothing they say or do could give humanity a chance of victory, why try to build a 5th column of Trisolaran worshippers within human society? Surely there would be no need for this?

7. How was using the nanofibres the safest way of obtaining the recordings of the conversation with the Trisolarans? Surely the risk that the fibres would cut the hard drives is extremely high, when there are weapons / convert ops that already exist today that could get the hard drives with less risk of them being destroyed

8. The whole of Operation Staircase makes zero sense to me. Even if it had worked I can't see how it would be anything other than a massive disadvantage to humanity for a human brain to fall into the hands of the Trisolarans

Thanks for your replies.