You’re right, a relatively large influx of foreign workers of any skill level is harmful to all people, but especially the local people if it causes a reduction in wages.
If the cost of goods increases, it won’t likely be severe since it serves the entire population while only a small percentage of the population produce the goods. Also changing prices affects demand independently from cost of production.
If the cost of goods increases, it won’t likely be severe since it serves the entire population while only a small percentage of the population produce the goods. Also changing prices affects demand independently from cost of production.