Sure I agree with a lot of that. But compared to the US being reliant on half a dozen bases or so with a large share of their forward deployed assets positioned there, individual Chinese fixed assets are much less operationally important than Guam and Okinawa. Also only a portion of PLA tracking assets are fixed and they are defended by the Chinese SAM complex and incoming fires will be tracked by all the sensors the PLA has in west pac.
That's a different problem to the one you were talking about, which is whether the US could launch viable long range standoff strikes with LRASM or JASSM-ER pattern missiles against viable PLA targets without close in ISR.
The answer is yes, there absolutely are a significant portion of PLA targets that fulfill that criteria:
- PLA fixed land based targets in general, which do not need midcourse guidance
- PLAN ships known to be operating in relatively small waterways where midcourse guidance is not needed, and where the missiles can rely on their own onboard terminal guidance once they reach the area where PLAN ships are expected to be (think Taiwan strait when PLA is conducting the amphibious invasion phase and/or resupply shipping)