All that this proves is that it is not working well in the UK. It does not prove that universal health care is inherently faulty. There are many places where it;s working well:
There's no single "best" healthcare system, as rankings vary, but Taiwan, Singapore, South Korea, and Australia consistently rank highly for universal access, quality, and affordability, while Switzerland, Netherlands, and Japan are also praised for strong outcomes, innovation, and efficiency, often with high life expectancies and low infant mortality, though systems differ greatly in funding and structure.