Please remember that NGOs are not charities. And the entire point of an NGO is to get around restrictions on what governments can do. I think most of the grips about NGOs comes from the selling of NGOs as charities which they very much are not. They are however, taxed in the same way as charities and donate significant amounts to political campaigns (mostly local and state level).

So they get around centuries old restrictions on governments, get taxed like charities and donate heavily to political campaigns. That set of properties can and should draw significant criticism. When you act like they are charities, it just makes you seem naive. If they were charities, they would call themselves charities.