I don't have a problem with Plaid as a left-of-centre alternative to Labour -- even though I'm a long-time member of the Labour Party, I'm also from the East Midlands/South Yorkshire borders, and I accept Plaid are a completely different kettle of fish from the English Nationalists who appear in English Labour strongholds where there's no realistic opposition. I'd have no difficulty voting for Plaid to keep the Tories out, either.
However, I fear the economic case for an independent Wales as part of the EU is even more fanciful than that for an independent Scotland, and for much the same reasons -- where do you get the money from to run the country, and how do you cope with a hard customs barrier between England and Wales, similar to that between the UK and France?
ETA: The Greens seem, on paper, to have some decent ideas, but I'm afraid that, in practice, they've, along with George Galloway's latest party, become a refuge for left antisemites now the Labour Party is no longer as hospitable to them as it was under its previous leadership.
The Board of Deputies of British Jews calls on the party to remove three candidates
inews.co.uk
The Green Party has apologised after a post was published on one of its local branches’ social media pages wishing people a “Happy Yom Kippur”. The post, published on the Party’s Brighton and Hove X account, also featured a chanukiah, a nine-branched candelabrum used during the Jewish festival...
antisemitism.org