PLAAF can just fly into Taiwan with Pelosi without firing unless fired on. From that point on all PLAAF and PLANAF will just fly over Taiwan instead of around it.
Yes, if America gets to fly its military planes/jets into TW then it stands to reason China gets to do the same...
Imagine if tables were turned and China was to fly J20 overland Hawaii but then demand the US cannot land a F22 on Hawaiian airport etc....its unthinkable
The argument could be that TW gives US permission/consent to land military plane but did not consent to mainland China...
However due to status of TW being renegade/rogue province and this being a civil war, internal matter, one could say the permission/consent is not Tiawan's to give or not give in the first place...and rather the authority of this belongs to mainland China and China already told US its a hard No
If Hawaii wanted to cede from US and gave China consent to help it militarize does anyone think US will tolerate that?
But ultimately this itself comes around full circle, since by definition soverneigty and status of any civil disputes its arbitrated and decided by results of war... reunification by force or independence via help of Uncle Sam...
This is what the whole guardrails talk was about, US wants to destablize China while containing the fallout.... but if US helps TW in a civil war/independence fight militarily then China should take out all the US bases within the second island chain including those in South Korea and Japan, not to mention guam, diego garcia etc... and if this escalates to full scale nuclear war then so be it