Is assimilation only an idea applied to immigrants? Or, could this concept be applied to other, non-immigrant groups (i.e., women, religious minorities, LGBTQ, etc.)? In what ways, if any, do you see...

Is assimilation only an idea applied to immigrants? Or, could this concept be applied to other, non-immigrant groups (i.e., women, religious minorities, LGBTQ, etc.)? In what ways, if any, do you see non-immigrant groups assimilate with the dominant culture?