Whether you're trolling or not, you also genuinely don't understand the current situation. So I'll explain it in more detail to you. Putin and other key members of the Russian government have just proven to be unreliable persons who cannot be trusted and negotiated with. This makes future ways to deal with Russia extremely difficult. It is also unrealistic to expect that this is going to get better, the older Putin gets. On the contrary, if he stays in power indefinitely we can expect his revisionary pseudo-historic views and his disrespect for national sovereignty to increase. His successor might even be worse, given the poisoned political climate in Russia today. However, Russia is a major nuclear power. There is a realistic worry within the EU and NATO that Russia would get emboldened by past lackluster responses and risk a calculation that attacking a smaller NATO country might not invariably activate nuclear defense plans.

All of this taken together makes imposing heavy sanctions on Russia essentially inevitable. They are the only civilized response available, and not doing anything could have fatal consequences far beyond the EU. Governments across the world rightly realized now - unfortunately, too late - that the comparatively weak response to the 2014 annexation of Crimea has emboldened Putin to order a full-scale invasion of Ukraine. They will not repeat this mistake.

Edit: Looks like a consensus has been reached and Russia is about to get excluded from SWIFT.