You are only looking at one small part. Total immigration affecting housing & jobs are regular immigrants + temporary foreign workers + students (who often also work and have had most work restrictions removed). Each group also has their own path to citizenship. Our government is unfortunately targeting >500,000 per year even though housing cannot catch up. When people have kids they take almost 20 years to need their own space, direct adult immigration like this takes a housing unit away from an already tight market.