For some definitions of communism... in the US, many would have us believe that universal health care is a key component of communism and China still has plenty of that.
Private industry is really, really good at innovation (e.g. discovering new drugs and treatments) and providing optional goods and services but most people just want a basic level of service and they want a funding structure that does not misalign incentives.
For example, optional basic health insurance doesn't work because poor people will quit the insurance program while they are healthy and then only unhealthy people will stay and bear the full cost. This raises the cost for poor unhealthy people and then they quit insurance and get denied access to care. Finally only the wealthiest people will have health insurance.
Capitalism is just a tool that's used to achieve certain outcomes. It just happens to work more often that it fails. Nothing more, nothing less. If a different tool works just as fine or better then it can be used selectively in areas where it's superior. Blind faith to any tool is stupid.
Communism on the other hand tends to fail by default and because it requires external forces to make it work, it breeds authoritarianism and then everything goes bad.
The UK, a capitalist country, does.