Crashing/shooting Pelosi’s plane in anyway is not on the table. China is not about to kill a member of Congress, let along speaker of the house.
She is going to loose if she is betting her life on the assumption that China is afraid to fight the US.
China doesn’t want to fight the US, but it did exactly that in Korea when it was poor, weak, isolated, hopelessly outgunned on paper and didn’t have any nukes.
The unspoken truth is that fighting America directly and winning was always what the PLA expected it would have to do in an armed reunification scenario.
It would love it if it didn’t have to fight America, but it would never ever have banked on that.
As such, shooting down her plane actually changes almost nothing from the POV of the Chinese. If anything, it might actually make things much easier for them since there would be absolutely clarity on what needs to be done, so you avoid a similar situation as in Ukraine where the US leverages the fact Russian doesn’t want to fight them directly into allowing it to give Ukraine material intel and sensor support not even the US military could guarantee during a state of open hostility and combat between US and Russian forces.
I still think that if the PLA does use lethal force, it will be against the escorting ROCAF fighters once they are within 12nm of Taiwan.
That will be the absolute last chance for her. If her plane does not turn tail and run like hell back home after that step, the next missiles will be for her.