I hit the history books. I apologize.
Yeah, Turks are very nationalistic. Regardless of who their opponents might be Turks fight back hard, resistance that often takes opponents by surprise. (That, of course, doesn't justify the resistance of militant Turks to the Israeli boarding party in the MM affair.) Historically this quality makes Turks easier to manipulate by their leaders.
Israel, then, isn't necessarily (I don't know enough to drop the qualifier) viewed with especial hatred by Turks, only the Erdogan-type guys; it's simply easier for Erdo to get anti-Israel states and organizations on his side by picking on Israel.
The psychology strikes me as different enough from Western, Arab, or Pakistani to suggest that directly defending Israel in the MM affair is not a productive route for Turks to take. Concentrating on how Erdogan stages and uses inflammatory issues to blind people and stifle opposition seems like a better route.
Yeah. That's the problem with Eroğan's populism, you said it right in the last sentence. He blinds people. He has a booming voice that, unfortunately you don't speak Turkish but, it almost convinces you he's right. And he's not, lol.
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I would ease off blaming the MM affair on the militancy of the Turks onboard alone though. Regardless of who was aggressive and who wasn't, you've gotta think of the mindset of both sides. Both sides had the perfect mindset for a disaster
Turks on Board : They're going to give aid to Gaza. Obviously, Israel is a big obstacle in this and im sure that while they probably weren't anti-semitic in a racist sense, they have a poor opinion of the nation. They're sailing towards Gaza expecting the worst to happen, and when thats being expected thats what happens.
Israelis on board : These are Muslims aiding Gaza. They're probably threatening our security, therefore we have the right to harm them (or defend ourselves, its irrelevant in the point I'm making)..
However both sides were wrong and the worst did happen. The Turks weren't going there to harm Israeli National Security. The Israelis probably weren't going to just slaughter the Turks if they cooperated. It's an unfortunate event.
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In terms of the view on Israel you mentioned, I think you're starting to get it. Yes, it's easier to get support from Anti-Israeli rhetoric and in truth that's probably the audience for the rhetoric. Turks just don't get too excited by anti-Israeli action, they just feel bad for fellow Muslims dying.
Remember, the order of action wasn't..
(confront Israel) -> (look for new allies in the region) -> Erdoğan warms up to the arab world
more like..
(Let's foster better relations with the islamic middle east) -> (bash israel to win points)