They are absurd and it’ll probably be a good thing when we’ve got past their existence. But the problem here is that proving surgery is essentially impossible. It’s quite unlike drugs that you can test for. Maybe implants you could test for but that’s just one thing, and I’m not sure that beauty pageants even have the kind of budget required for advanced tests.
Marxism is a materialist philosophy, it is specifically anti-idealism. I suspect this is a case of a person that does not understand what idealism actually means in this context though so I’ll help out with a very simplified explanation:
Idealism = the belief that human beings control their environment through the use of ideas. That humans have ideas, and then use those ideas to impact their environment.
Materialism = the belief that human beings get their ideas from the material conditions that they find themselves in. That it is actually the environment that human beings exist in that gives them their ideas.
Marxism is a fundamentally a materialist philosophy. Its key thinkers were viciously anti-idealism and sought to ground marxist analysis in scientific analysis, hence the nickname “the immortal science”. Liberalism on the other hand holds idealism as its core tenet and believes that if you just get enough people to change their ideas you can create change. Hence why many liberals think you can just convince the rich to go completely against their material interests with discussion rather than understanding that they hold their ideas because they are the rich, because of the material conditions they have that differ from the working class.