"The fall of the Ottomans was related with European interference only in as much as they picked a fight with Austria and lost"
Not to mention that Austria wasnt the one who caused the downfall of the Ottomans, it was more the Ottomans just choosing the losing side in World War One.
Well that's what caused the final collapse. The seeds of the Ottomans' downfall had been sown long before the guns of August commenced firing.