As a Jew living in Wales, I have been struck by the general courtesy and fairmindedness of the Welsh. I've noticed very little anti-Jewish sentiment - and that little tends to come from English incomers (who also make racist comments about other groups)! The Welsh are sophisticated enough to distinguish between their feelings about Jews and their views about Israel and Palestine, although I agree that opinion has shifted over the years from a strong sympathy with Israel to a sense that it is the Palestinians who are the small nation living under oppression on their own territory (a perception that has strong historical resonances for Welsh people). By the way, the comment that 'Wales is just part of England' is fairly typical of the sort of insensitivity to other cultures that you find among certain English expats.
17-year-old Palestinian killed by IDF on Friday laid to rest near Ramallah (Haaretz)
from the article: Jews were once loved in Wales