even less so,

"According to Young, though, the ultra-wealthy traditionally haven't migrated in droves following such tax hikes. Only %2.4 of U.S.-based millionaires move across state lines each year, roughly %15 of whom apparently do so for tax reasons. 'So it's like a small l fraction of a small fraction,' Young said.

https://sociology.cornell.edu/news/final-reading-flight-myth