In Americans politics, and you guys are completely bonkers.

That's absolutely not what it means

In the very closest definition, liberal means "if there isn't a law against it, you're allowed to do it"

liberal more broadly is just as simple: "if it doesn't hurt me, you're free to do it"

I mean, what do you think a "liberal democracy" is? The majority of Europe is made up of liberal democracies while also being social-democratic. France is a liberal democracy despite being heavily unionized and having huge welfare. How does that work?

It works because that's not what liberal means.

Socially-Liberal, for example, is when you are liberal (freedom-loving / diversity-loving) in social aspects. You support gay marriages, you support freedom of religion, you support cultural diversity. Other Examples include religiously-liberal, culturally-liberal, or even politically liberal (you support the right to different political opinions than yours)

What comes closest to what you think it is is economically-liberal. Which essentially says that "as long as it doesn't hurt me, you're free to do what you want economically". But even that isn't what you mean. Is Pollution and accelerating Climate change harming me and therefore not protected under liberalism? yes, says the absolute majority of liberals.

Is lobbying harming me by making my Voice less weighted? Yes, say a lot of us.

So not even economically-liberal is a good term to describe what you mean.

I don't know, what a good term for it is. But it isn't Liberal. So please, for the love of god, stop misusing it. Words have meaning. Invent a new one if you have to, they all began that way anyways.

In European politics.

American liberals do not support free markets. They're advocates of greater regulation amd stronger unions.