No.
Just like how bourgeois-backed liberal economics sees capitalism as anything to do with money, settler-colonial-origin people see settler-colonialism as anything to do with migration, as to somewhat justify their particular mode of life, by backdating it back to their pre-origin past as something natural.
For sure, it's one part, but it isn't the only thing that defines them both.
This is just blunt vulgarization by cultural liberal hegemony.