“then decided to violate other country’s air space.”
Nonsense. If the Russian plane went into Turkish airspace, it was for no more than 10 seconds. Clearly the Truks planned on shooting down a Russian plane. Russia is interfering with Erdogan’s plan to destroy Assad and the Kurds, and he want’s NATO (meaning the US) to get rid of them for him.
No nonsense about it. Even if it’s “just for 10 seconds” you don’t fly armed planes over somebody else’s airspace without permission, ever. It’s an act of war. And this wasn’t the first incident. The Turks SHOULD have shot it down, that’s the correct response to repeated violations of your air space.