US seems invested in interceding in PRC-TW scenario, nuclear deterent will set ceiling of escalation but conventional deterrent raises floor of US particapation

US seems invested in interceding in PRC-TW scenario, nuclear deterent will set ceiling of escalation but conventional deterrent raises floor of US particapation. PRC needs credible conventional CONUS vunerability to deter US conventional intervention in first place instead of relying on nuclear to limit scope of conventional war that current US admin/blob still thinks can be fought.