> Alcohol is a poison.

A meaningless blanket statement.

Methanol is a poison, far worse than ethanol, yet you've likely consumed it in small quantities from what you would think of as non-alcoholic sources. If there's no safe level alcohol consumption, you'd best stick to consuming your fruit unripened or avoiding them entirely. Again, relative toxicity is meaningless without also taking dose into account.

You could easily say the "correct" amount of oxygen is toxic, much more so than nitrogen even at sea level, and not be technically wrong. Change up the pressure and mixture and you might find the nitrogen causing more immediate (though not toxic) danger.