Evolution is a fact and the Theory of Evolution explains that fact.
Philosophy does not trump mountains of scientific evidence supporting the fact of evolution.
Science has not yet substantiated the reasonable notion that the variety of species present in the world today is a result of billions of years of change in allele frequencies. For that reason, evolution attains only to the level of "reasonable notion," or "philosophy." It does not attain to the level of "fact" as you assert. It certainly does not belong in any classroom except those where pontification is one's professional aim, not unlike that of certain politicians.