noone should be mining right now. You are almost all mining at a loss with no granted profit.
Wrong. You can't generalize if someone should mine or not as you don't know how much he's paying for electricity + the hardware.
For most people you're right but there are still enough people mining at profit and not at a loss.
Pretty much sums it up, you can go pretty deep but at the end there is at least SOME speculation (but on the most basic levels most of us use, this is perfect).