Contributing to public finances isn't the only thing for which we need people, it's not even the most important thing. We are going to need a lot of people to care for the elderly, people working in construction, etc. Which particular group then does the much higher paying jobs that contribute more taxes is less relevant.

Also, things like building roads and infrastructure, picking fruits, logistics, etc. The value of these jobs for the society are not commensurate with their wages.

> immigrants from non-Western countries and their descendants

Key word "descendants". Are those by any chance children, who were born in the country (therefore are not themselves immigrants) and need to be educated? It seems dishonest to count them as not contributing when they're not old enough to.

Again, most immigrants are not eligible for any welfare until they are fully naturalized.

Look at the chart that op shared