Methanol is wood alcohol, made from wood, good for fuel and poisonous to drink.
Wood farmers don't have much pull in Washington DC.
Ethanol is grain alcohol, made from corn or potatoes. Good to drink and good for fuel.
When used as fuel it is government subsidized.
When used to drink it is HEAVILY taxed.
Corn farmers are in every state and thus corn alcohol (when poisoned by gasoline) is heavily subsidized.
Ironically, I have bought gasoline in Iowa and Nebraska and noted that alcohol-free gasoline is offered at a premium price.
Denatured alcohol is poisoned ethanol to keep people from drinking to avoid taxation.
I don't know exactly what the poison is, but I sure don't drink the stuff.
Home Depot sells to labeled as "Fuel".
It works well for clearing models that have been flown with glow fuel and for cleaning engines and parts.
Incidentally, the V2 ballistic rocket was fueled with potato ethanol (vodka) and it worked well enough.