Not in a pluralistic society there isn't. The U.S.A. has always been a pluralistic society and pluralism has been enshrined in our Constitution as a core American value as we believe it to be desirable and beneficial and our 200+ year of history of dealing with mass immigration has demonstrated it as time tested and proven to be a great benefit and desirable.
You're argument is based on the erroneous argument that pluralism and assimilation are mutually incompatible.
The immigrants today don't assimilate.
