The one responsible for the change is Margaret Mead—she is
known for her publications and even studies that involves with anthropology,
especially in the way her research had defined masculinity and femininity which
is shown in the description above. These are all cultural and not based on
biological.
I believe the answer you are looking for is:
"In the old days of assimilation, foreigners felt the required need to become as American as possible. America is no longer asking or demanding immigrants to abandon their birth culture."
Hope this helps!!
(Brainliest)
It is called bicameral legislature or bicameralism