You're being pedantic about terminology which I've already demonstrated my understanding of in this thread. In the context of the general populous, "scientific fact" means that a random lay person on the street, despite not doing any of the research themselves or reading any of the literature on the matter, accepts the conclusions of the scientific community as the truth. It's a scientific fact that the world is round even though most of us have not taken any measurements to verify this, and almost none of us have been to space. We just trust the wealth of data produced by professionals in several different domains which all point to the same conclusion.

You're also being disingenuous if you think "just a theory" isn't a phrase constructed to mislead. Your comment implies that you understand that a theory is literally the strongest model that science can give us about a topic, but saying something is "just X" implies that there is something else beyond X. So which is it? Is a theory as strong as it gets, or can science do better? If it can't do better, then never use the phrase "just a theory".