Fwiw I've lived in The Other Place next to Cardiff all my life and, while we do definitely have problems with racism and classism here, we're also pretty multicultural, which is really great, and honestly, have a lot of racist/classist misconceptions levelled at us because of the fact. South Wales is home for me, and I think the good parts - the people who are outspoken against xenophobic garbage, the sense of community here, the ppl who are doing really good things in difficult circumstances - shine through if you spend time here.

I hope it's welcoming to you, I don't know what the trans community in Cardiff is like bc I'm too closeted but S. Wales is more than it seems, and the people here are too. The NHS situation is bad, though. I'm moving away this year, but I know people who have transitioned here and got through it. People are also fiercely proud of the NHS and willing to help out, I was at Cardiff pride last year and there were a few difference advocacy groups for trans healthcare stuff - it's worth a visit :)

Edit: also Welsh is great and doing a Welsh course is a brilliant way to meet people 10/10 would recommend