No, it is an unprovable axiomatic cognitive assumption. In other words it is a belief:
"Naturalism's axiomatic assumptions[edit]
All scientific study inescapably builds on at least some essential assumptions that are untested by scientific processes.
[43][44] Kuhn concurs that all science is based on an approved agenda of unprovable assumptions about the character of the universe, rather than merely on empirical facts. These assumptions—a paradigm—comprise a collection of beliefs, values and techniques that are held by a given scientific community, which legitimize their systems and set the limitations to their investigation.
[45] For naturalists, nature is the only reality, the only paradigm. There is no such thing as 'supernatural'. The scientific method is to be used to investigate all reality.
[46]
Naturalism is the implicit philosophy of working scientists.
[47] The following basic assumptions are needed to justify the scientific method.
[48]
- that there is an objective reality shared by all rational observers.[48][49] "The basis for rationality is acceptance of an external objective reality."[50] "Objective reality is clearly an essential thing if we are to develop a meaningful perspective of the world. Nevertheless its very existence is assumed." "Our belief that objective reality exist is an assumption that it arises from a real world outside of ourselves. As infants we made this assumption unconsciously. People are happy to make this assumption that adds meaning to our sensations and feelings, than live with solipsism."[51] Without this assumption, there would be only the thoughts and images in our own mind (which would be the only existing mind) and there would be no need of science, or anything else."[52]
- ..."
Philosophy of science - Wikipedia
Evidence is a belief system, that apparently works.
Now I do believe, that objective reality is real, but that is a belief.
Learn to be skeptical of the cognitive abstract concepts of evidence and reality. They are both ideas in the mind, which seems to work and then be honest as state that.
There is no absolute truth. That is not absolute, it is a conditional, based on the assumption that no human is God. In principle the only being, who has absolute knowledge and thus truth.
Now you are a scientific skeptic, who doesn't doubt reality, science and evidence. I am a general strong skeptic and I only have beliefs, which apparently works.
We are just not the same kind of skeptics. You are a local/limited skeptic, I am an universal/general one.
So as far as skepticism goes, we simply believe differently and apparently you believe that you don't have fundamental beliefs.