I still get people telling me that "well-regulated" means firearms being regulated by the government. You have to look at the historical content. In those days "well-regulated" meant "well-practiced" and "well-maintained" - the people, not the firearms. People who were well-practiced and well-maintained when it came to firearms - with a group of them being known as a militia.
My experience has been that leftists always lie - and they don't even know they're lying.