No soapbox,you completely miss the point. Incomers are welcome-those that make the effort to integrate and learn the language. That goes for all places-not just Wales.
I know and am friendly with many many 'incomers' who have done just that-with enormous success.
The chief executive of Cymuned was a non Welsh speaking Welshman who had lived and worked abroad for most of his childhood and twenties who decided to come back and learn Welsh.
There are also many many non Welsh members
My mother is English btw and I have spent most of my childhood and adulthood in various other countries.