So if violence was no purpose, then Xavier was a hypocrite for having the X-Men fight (WITH VIOLENCE) Magneto. Every time Wolverine stabbed some Purifier, it made Charles a hypocrite. Every time Cyclops blasted a Reaver, it made Charles a hypocrite. Every time Colossus punched a Friend of Humanity, it made Charles a hypocrite.
Know what would have happened if the X-Men chose pacifism? They would be completely and utterly annihilated.