"And I don't see any relevance between your "explanation" and the essence of the question. "
"Relevance" means importance, pertinence, or applicability. "Relevance" does not mean "relation."
“Relevance between” is a case of corruption that analogy often brings about. “Relation between” starts with re-; “reference between” also starts with re-; "relevance" also sounds nice and also starts with re-…,why not
relevance between then? Because "relevance" does not mean correlation (correlation legitimately uses “between”).
“Relevance of your point to the issue at hand”…is OK; “relevance between your point and the issue at hand” is nonsense.