Yes, JEWS is a Scrabble word!

Letter values in Scrabble US: J 8, E 1, W 4, S 1.

Is it a valid word?

JEWS is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

a person belonging to the worldwide group claiming descent from Jacob (or converted to it) and connected by cultural or religious ties

Not playable in Scrabble US: HEBREW, ISRAELITE.