When did anarchism start becoming confused as a right wing ideology?

As Basil says, it's more about the term libertarian. When people talk about it, they mean ultra free marketeers. Radical right-libertarians are called anarcho capitalists.

It removes all class analysis: switching this to the state vrs citizens. It's ostensibly pro individual liberty but all of that is effectively subordinate to property rights. The latter point being the most fundamental difference with socialist anarchism.

Though it claims to be anti establishment (against big government) and wants a utopia of free individuals and small business owners, it's not workable, even in its own terms.

Capital has a historic and systemic tendency towards monopolies and - with a negligible regulatory state - that would only accelerate. The reality would be mega corporations making their own laws and having private armies to protect themselves. It would be Blade Runner meets Robocop.

I fear we might end up living with something like that.

When German Anarchists in WW1 backed Nietzsche (who thought he was a aristocratic conservative, despite also being a young hegelian in orientation by adopting Max Stirner's ideology).

You also had Russian Aristocratic Nihilist like Kropotkin. Also in the Spanish Civil War the faction that attracted the most conservatives from a American prespective was the Anarchists, who when federalized looked familiar. Our Anarcho-Capitalists (typically tradesmen like Plumbers) tend to align as conservative small businessmen.

The european Left-Right spectrum is artifical and inherently unstable. It started during the French Revolution for which faction sat on which side of the table. It has little bearing to something like a Kyklos Cycle able to predict ideological transformations systemmatically. What is called the right in Europe often looks bizarre from a conservative American perspective.

Idk, haven’t studied philosophy or global political ideologies much, but it makes sense to me. Right wing in the US is always complaining about too much government, and anarchism is basically about never having any kind of permanent government.

Americans can't defend their barbarous and war making politics, so they confuse and obfuscate. They lie about what's right wing and what's leftist, they don't accept evidence. They're anti politics and that's important! They're dangerous and the philosophy driving them will NEVER be an issue for them!
To believe our current political powers are not legitimate is what most people know as "anarchism". Obviously people don't want a powerless politics.

When it became popular

ive personally never heard the two associated with eachother

Can the right wing even be called Conservative any more? I dont see how..😷

Because they think it just means “no government” which somehow to them equals “freedom”

Probably when Conservatives started pretending to care about "small government."

When they stole the term "Libertarian" from us.