Georgia is a test run to see whether the U.S. will put up any meaningful resistance when they invade the Ukraine and Poland. It is also a way to show the former eastern block countries that U.S. support is only rhetorical. We will have a hard time finding allies in this world if we let Russia destroy Georgia.
Ukraine yes. Poland no. In order to invade Poland they would have to transit through Belarus. I suspect that Belarus will fall to the new Soviet Union without a shot though.
Georgia is one thing. Ukraine and Poland are another. Like comparing the invasion of Connecticut to the invasion of California and Oregon.