The problem of this conversation is that "immigration" is treated as one single, amorphous thing. What kind of immigrants are we talking about? What was their

The problem of this conversation is that "immigration" is treated as one single, amorphous thing. What kind of immigrants are we talking about? What was their income, their skills, their ability to speak the local language, what jobs could they get once they arrived in the country? Answer all those questions, and depending on your answers we may find a completely integrated, successful migrant or someone who lives generally excluded from society. Skin color and religion may play a role sometimes, but they are typically far from being determinant. For that matter, I am a dark skinned immigrant in the country I live in. I also speak the language fluently, am highly educated, and make around 3x the median local income. Of course, I never experienced racism. Change some of those social attributes, and I bet the outcome would be different.