The great majority of folks who amalgamate in all societies do it willingly, voluntarily, and knowingly. You can't prove anything differently.
Side note: The Little Rock 9 should up the motherkluckers in the WCC (White Citizens Council) because the whites were afraid their girls and boys would get together with the black students. Six of those nine married whites, and their marriages lasted, except for one that ended in death.
Right, Jake -- it took the force of armed soldiers to "integrate" the schools. Very "willing and voluntary", sure.
Now, decades later, the schools are completely resegregated again. People just moved away. The entire concept of "suburbs" is so whites didn't have to live with blacks.
Races are like oil and water. You can shake hard enough from the outside and yes, they "integrate." Stop the interference, and they move away from each other.