There isn't a big enough sample size of countries for you to conclude this. I mean for all we know democracy might be inherently unstable and we are living through a brief spasm of it looking stable of a few hundred years; it's an incredibly unlikely system for government and just saying blame Muslims is incredibly cheap. Most of the Turkish people I've talked to in London think Erdogan is a crook and they say their country is hugely divided but people are afraid to speak up.