For anyone interested in this subject, here's a good BBC documentary on Welsh Patagonia that just came out: https://www.youtube.com/watch?v=5x7B9AIgyjs

There's also the slightly bonkers Seperado documentary in which Welsh pop star Gruff Rhys traces his family connection in Argentina:

https://youtu.be/r2IfD-6iS3Y

I was a bit confused about how funding from the UK was affected by inflation in Argentina? Wouldn't the exchange rate change to accommodate that?

Capital controls and a non-floating exchange rate.

"Why do we all have to speak the biggest language? Why can’t we speak a language that talks to you about connections, about history?"

Pretty cool.