Private care is not the answer to the NHS crisis: But%20NHS%20waiting%20lists%20have%20grown%20to%20unprecedented%20levels.%20In%20March%202023%2C%20there%20were%207.3%20million%20people%20waiting%20for%20%u201Cnon-urgent%u201D%20elective%20care%2C%20such%20as%20knee%20replacements%20and%20cataract%20surgery%2C%20almost%20double%20the%20amount%20in%20May%202020.