What a stupid, pointless article.
No-one in their right mind disputes the need for property rights or infrastructure to create a prosperous society.
The argument against leftie policies is that they make property rights less secure, and divert money that could go towards infrastructure towards bribing various special interest groups.
As to whether investors create jobs, well someone has to own the accumulated capital in an economy. Is it better for that to be owned by private individuals or by some government collective ? I think that question answers itself.
For some real world examples of “millionaires islands”, try Hong Kong and Singapore.