I get the premise, but it’s intellectually dishonest. Mormons believe in LOTS of things that evidence is in strong disproportionate assault on those beliefs.
It’s more disproving a negative.
I don't think so. Wrong maybe, unprovable to mortals on our order of existence, certainly. But people can sincerely and honestly believe things of this nature. As JFC has codified "lying", it's not lying if you believe it's true, and I would throw in "it's not intellectually dishonest, either".
A Mormon scientist like Henry Eyring, reading the D&C or PofGP, or Book of Mormon.... or even the Bible..... has literal mountains of intellectual challenges to deal with somehow..... and so do ministerial or pastoral folks of all Christian variants in regard to their "scriptural " texts that have obvious conflicts either with historical scholarship, or any other standard of judgment or research seeking facts.... objective, provable to our logic, sorts of stuff.
Henry Eyring chose to accept scientific findings in the field of evolution and geology as facts despite some folks' ideas of what the scriptures lay down as essential assertions. He was a practical man, and treated everyone with respect even those who disagreed with him. He tried hard not to be offensive, and when intellectuals came on attack mode to prove him wrong somehow, he was ready to say he didn't know how God did something, but he considered it his faith to believe whatever actually is the truth, when we can reliably know it to be so.
I would take the issue on a little different tack, and say there is no such thing as "settled science" or "scientific fact" even, because enquiry is the essence of science, and the formulation of challenges to existing ideas is the very purpose of science.
And I oppose any government effort to assert "settled science" on the populace. Government is incompetent on the subject and should never be given the power to license professionals involved in science of any sort. Or religion.
Indeed, I consider it my mission in life to challenge every form of dogma that anyone seeks to establish as the only acceptable idea on any subject.