Seems like many posters are getting overly emotional, painting these stark choices between shooting down Pelosi's plane or face domestic unrest.
It reminds me of the HK riots, when emotions ran equally high. Like the riots have shown though, the Chinese government has a far better handle of the situation than we can imagine.
There are some nuisances to differentiate though.
Hong Kong case was entirely a civil and political unrest where both China and US militaries remain uninvolved.
Never during the entire episode Xi, or PLA, didn't issue such stark strong warnings at the national level.
Shooting down an unarmed plane from the get-go is a bad taste, which I'm sure PLAAF definitely wouldn't do.
But what happens after initial encounter, if she shows up, will be like, as they say, the rest is the history, if it's a hundred planes pile up all armed, ready and pumped, or some of them scared. Shits can happen.