I didn't realise they would be setting this up as a debate (since my points were actually more nuanced) but some sense of what I said. https://www.bbc.co.uk/news/uk-wales-66464173
@drswissmiss if Swedish didn't use words from other languages it would be a very different language. More cumbersome but still Swedish. Loan words don't lessen a language though!
I don't speak Welsh as the tuition for it in the early '90s was dreadful at my school and my family didn't speak it. This Welsh-only stuff means I'm essentially excluded from (one of) my own culture(s).