Chestnut and how many of them are actually Welsh? You could say that about anyone in Wales, Scotland or N Ireland. I for example have one Welsh and one Scottish parent. The UK has been a cultural and ethnic melting pot for centuries.
However since Charles was invested as PoW there have been major changes in Wales. Many more young ones now speak Welsh, it is more widely used and more schools teach lessons in Welsh. The Senedd Cymru has been established, and there is an increasing sense of identity in Wales as a country in its own right.
The Royal Family is popular in Wales as polls show, but surely it was disrespectful and bad judgement at the least, which may rebound in the future, to appoint a new Prince of Wales without prior consultation.