A little bit deceptive way to say it because there are some red states with high out-migration like Alaska and North Dakota- but there are also a lot of red states with much higher in-migration than California and, especially, New York, such as Florida and Texas.(From what I saw for 2016-2017 this could be more up to date but I don’t know the accuracy Plus this looks like generally blue counties are more often out migrating.](census.gov/…/net-domestic-migration-increased-in-…)