Well, that is insult to many freedom fighters and with your logic creating of US is "revolutions of dumb people". For your information (I suggest go read because you obviously didn't) - Austria wanted a war, the assassination was just a good cause for them. The assassination happened in Bosnia (in territory they annexed) but they gave ultimatum to other sovereign state (Serbia) to conclude investigation with their own force on a soil of independent nation - I wonder what would happen if Turkey wanted to send its own investigators to conclude independent investigation of dead Turk in Germany.
For Serbs G.Princip was freedom fighter - Bosnia historically was Serbian land (Raska), most of muslims come from Serbs converted to Islam, and today half of Bosnia is entity called Republic of Srpska - Austria really had no business to be there in first place.