I come from a fairly small plain town in Central Scotland and not even in our 'main shopping precinct' but by our local shops in our street a new Polish grocery store opened just last week.
As it is there is one in our main precinct too, about a mile away. Been there a few years now.
Why do you think that is, because they await immediate expulsion?
I don't know how you conducted your research but the evidence is clear, no one is getting chucked out.
And I'd like to see evidence that there is a groundswell demanding otherwise.