Much thanks Sujith. This outlines a very understandable position, although (particularly with memory of some, in my opinion, really unfortunate discussions in connection to large numbers of migrant coming to Europe in the last couple of years) as it’s been given in response to a comment I made, I do feel a need to set myself quite apart from it.
The fear of being ‘swamped’, to my mind is a very different thing to just not knowing how to fix massive and complex problem, or even how to contribute towards fixing it at the individual level.