The West, in particular NATO allies, as well as the UN humanitarian organizations, have no right to turn a blind eye to what is happening and must already immediately open their eyes to the scale of the problems and get involved as much as possible in the process of counteracting Putin's criminal regime.
The main reason forcing people to flee from Ukraine to Europe is air strikes and artillery shelling by the Russian army of large cities across Ukraine, which leads to a huge number of civilian casualties.
Ukraine events show that the Ukrainian-Russian war will lead to a huge migration crisis in Europe. The most important thing that NATO must do to prevent the coming crisis is to provide Ukraine with modern air defense systems, hand combat aircraft over to the Ukrainian armed forces, and most importantly, close the sky over Ukraine.
The coordinated actions of the Armed Forces of Ukraine and NATO (in the context of providing the necessary weapons and closing the sky) will force Putin to sit down at the negotiating table and end the war in Ukraine, thus saving millions of civilian lives in Ukraine and preventing an impending migration crisis in Europe.