'We are not importing values."

Of course not !  We're importing humans that HOLD values, and if those values aren't in alignment with the ones practiced in our culture, there's friction.  Should we work to minimize that friction and improve the rate of adoption of our values?  Should we let values in diametric opposition to those practiced here get a foothold, again? It's not like we don't have a history of bigotry, sexism and racism in our culture ... are we OK with letting those 'new vantage points' take root again?

"There is no relationship between what I infer you are talking about and immigration."

Yes, we don't measure pretty severe and significant differences around the world on topics like gender equality and tolerance for homosexuality. Not a bit!