That is the answer. That's what we did in Canada for the first 100 years. We didn't have temporary foreign worker programs.
On your other question about left wing, right wing and centre, today I had a look on the public use census file for 2021, and I restricted it to economic immigrants in Canada. If you compare economic immigrants who work in French in Canada outside Quebec to all other economic immigrants who work in any other language, their earnings are 20% lower. That's straight from the census.
There are real costs to the policies we're laying overtop. This means they're paying less taxes; they may need more services. This is costing Canadians.