It is nothing like that. Those people are not migrants, and are not seeking a living in that way at all. They have fled countries that are fucked, Sierra Leone is one such place that they come from; it is a place ruined by years of civil war and brutality. They wither made their own way to the continent and are now out of ideas, or they paid what are no more than crime gangs to assist them in making the journey to the continent; often Eastern European, Turkish or Middle Eastern people traffickers. Once in Spain they are made to live in multi occupancy shitholes, scores of them living next to eachother and sleeping on the floor, and forced to go out and sell handbags and sunglasses to pay for their 'board and lodge' if you can call it that, and told it is to help repay the cost of helping them into the continent. Of course they will never ever be out of that servitude. Their wives and partners are made to prostitute themselves out by lurking around around bars in the early hours of the morning to entice drunk tourists with a blow job.
they are absolutely not seeking a living in the way you describe and you have fundamentally misunderstood what is happening here.
Alan Sugar is a **** for describing them as 'resourceful chaps' or whatever ridiculously ignorant term he used.
They are trapped in modern slavery. And that is why it is offensive and that is why it is racist.