In America, “liberal” means “left wing”.
No it doesn’t. Widespread ignorance does not change objective reality. This sort of thinking is Hyperliberalism. Just because most Americans are politically illiterate doesn’t mean the definition is changed. 40% Americans also believe the entire universe is only 6000 years old.
If you ask an american political scientist to define “liberal” they will tell you the “international” definition. If you allow technical and scientific terms to be subjected to “language just evolves” you end up with a Tower of Babble type situation where different groups of people are unable to communicate with one another despite using the same language and society collapses.
Saying something is obvious doesn’t make it true. The only noun you use in your first comment is “Democrats” so how is this not a discussion about politics? I am having a discussion about politics and I’m going to do my best to use political terminology in its established scientific meaning not a niche dialect that you believe is “common use.”
The world is much bigger than the USA. Americans only make up 15% of the English speaking world. What you call “common use” is just “ignorant and wrong” to the rest of us.