No, it's only easy for PRC to intercept ROC's missiles. When the ROC launches, if they even dare, it's just a few shoddy spray-n-pray examples of what's left in a desperate attempt to signal to America that it's fighting and worth saving. When the PRC launches, it's hypersonic missiles in droves, then total air coverage and dominance with armed assets actively hunting any resistance, especially missiles, interceptors, jets... and then when all of the ROC's defenses are suppressed, the PLA can let loose barrages of any old obsolete near-expiration crap they want and they can't be intercepted.