I suspect that isn't going to happen.
It's interesting though how racism establishes itself by being anything but itself. And then, afterwards everybody wonders how it could have happened again.
Let me take a stab at this in a way that it is somewhat balanced: I've grown up in Amsterdam, born in a time when there were hardly any immigrants and then wave after wave of them came by. What keeps me grounded is that I've been an immigrant myself. First to Poland, then to Canada, then to Romania and with long stretches in other countries in between. But I'm not brown and I'm not religious so I don't come across as strange or off-putting. I dress like everybody else does, I try to speak the language and adapt to whatever culture I join because I don't want to stand out and I'd rather be treated like a native.
But a person-of-colour immigrating into a country that is nominally 'white' doesn't really have that option. From a mile away the 'locals' can tell that person is different in some way. And if they are religious in a different way that counts much heavier against them than my atheism ever will simply because they're not aware of it (assuming they are religious themselves).
Depending on how the person responds to it this can have all kinds of effects, but the main response is the one the locals have to the non-white, possibly religious in a different way than they are foreigner. They are not going to openly tell this person they're not welcome and that they are afraid of them and don't trust them (see your question above). But what they will do is:
- disadvantage that person and their children
- talk about them in a negative way behind their backs
- blame them for everything that is wrong with their society (housing, welfare, whatever)
- harass them, but only when nobody is looking
And so mutual resentment builds. The kids find that they and their parents are not being treated fair, still want to live the good life and before you know it you have another criminal. Or not, but then there is someone who feels that the whole of society is out to get them.
This is why the West and immigration have not worked out well so far: equal chances don't exist and the locals tend to believe that immigrants are there to do the dirty work and be kept in their place. Amazingly one of the right-wing parties in NL now has a woman and an immigrant (Turkish/Kurdish) as the party leader. To the great abhorrence of many former VVD voters, who are now likely going to move to the PVV, the even more rightwing anti-immigrant party. NL may well have its Trump moment soon.