I'm getting really annoyed by all these Americans that think they understand anything about European politics.
No, it's a very interesting correlation or a sign of oncoming collapse that multiple governments all over the continent are about to see changes.

On this side of the pond cabinets fall all the time. It has no crazy big consequences except that shortly after this happens new elections take place.
The last time this happened in the NL, the main ruling party came out of the elections as the biggest party again. Even though

It was their coalition that fell.

Merkel leaving is also nothing crazy. People get old and retire sometimes, unlike in America some of our politicians don't stay in office until their death.

Italy's prime minister resigning is also nothing new. That happens every other month there.

Nothing special is going on, we're all still getting fucked and if you live closer to Russia, you're especially fucked.