People in the US tend to think it refers to things that are actually mixed economies or primarily market economies with strong social guarantees. Think things like the Nordic model or the European model.
Mixed economies with social welfare guarantees are mainstream economics. Actual socialism in the style practiced in reality by countries implementing socialism is mainly characterized by the absence of human rights (including zero worker rights), mass murder, poverty, and a ruling elite that are functionally oligarchs who have enslaved the rest of the population. And on top of this, all socialist states that I'm aware of have re-introduced markets in some form but retaining the dictatorship structure.
Socialism in the past (e.g. in the 18th century) has referred to other ideas, but it doesn't really anymore.
But even if you were to believe somehow that there's some morally redeemable version of socialism that has somehow just managed to hide all this time, the actual version of socialism embraced by China and promoted on TikTok is fully authoritarian, anti-democratic, and does nothing to improve economic equality in the US.
Yes. This is what people in the US mean when they say socialism in general conversation. They don't mean pure Socialism as Marx talked about it. Similarly when people say the US is a democracy, we know they don't mean it's an actual pure Democracy where everyone votes on every issue.
The Nordic model is the sort of economy and political structure that the 19th century socialists explicitly reacted against and rejected. It's a representation of mainstream liberal democratic theory not of socialism.
On the other hand democracy was always understood to be representative because you can't make every decision by plebiscite.
It has to do with being accurate rather than being "pure".
This oversells what China is. China is were government and oligarchy are in a strange symbiosis. Capitalism is worse in China in many ways. You are more free in China to exploit others on a large scale. H1B Visas seems to be an authorian idea to me and something that is heavily exploited in China.
What the US and China have in common is a strange kind of nationalism that I can not define, might be because I come from a smaller country.
All socialist states have been functionally authoritarian oligarchies in practice. I'm unaware of an exception. Someone once claimed Yugoslavia was, but I'm not familiar enough with it to have an opinion.
It's also confusing because there's the notion of State Capitalism (https://en.wikipedia.org/wiki/State_capitalism#Maoists_and_a...) that I believe Marx also wrote about but I don't remember the details off hand. I think this may more or less be the same idea as authoritarian capitalism, but it's also what socialist regimes eventually look like when they realize they need to re-introduce markets to prevent economic collapse.
My take is that the idea of socialism, communism, and capitalism are deeply muddled in theory and even more muddled in practice. Muddled or not, we have people who consider themselves socialists and followers of Marx, their theory is incoherent, and in practice they try to spread violence and destroy any country they take over. We don't really have people clinging to capitalism in the same way, although some right wing factions in the US tried in the 70s during the cold war to make a capitalistic sort of political religion modeled after the success of socialism.
We'd be better off not having to deal with any of these concepts except for the fact that some people have a strong allegiance to these concepts and there's no changing that in the short term. To me it's a bit like when people killed each other over ideas like how to interpret the tripartite Christian God. Is the son a separate person or the same person, and how does the holy spirit fit in? You get an entire tree of ideas, most of which eventually became heresies punishable by death. None of them made any sense but that didn't stop it from being a motive historical force.