Look at these charts.
NATO has bred complacency, laziness and irresponsibility in Europe. Too entangling. Europe should defend itself, and the belt of countries threatened by Russia should from their own security union.
NATO can help in a very inexpensive way — give several Eastern European countries nuclear weapons. (Ukraine had > 1200 until the US, Russia, UK convinced them to give them up in 1994 in exchange for pledges of respect for Ukraine’s borders.)
(Photos from the facebook page of Anton Shekhovtsov.)