EU has quite successfully decoupled from Russia already, we aren't heavily dependent on Russian energy or other natural resources anymore.
Also, EU countries in Eastern Europe do already have a high military spending, and even Western European countries are improving.
The situation is less than ideal but not hopeless.
It's hopeless. Enormous amounts of money is flowing out of Europe into China and the US. Europe has dogshit to offer. You already see it with gdp not growing. Whereas rest of the world did grow. Even Russia has higher GDP growth than Germany. Euro leadership is not smart.