By Benjamin RaabTEL AVIV, July 29 (Reuters) - A new Jewish-Arab political party is courting young voters ahead of Israel's October election. But critics say it risks weakening the bid by the already underrepresented Arab minority to unseat Prime Minister Benjamin Netanyahu and his rightist government.Israeli by citizenship and Palestinian by heritage, Israel's Arabs make up a fifth of the population but historically have voted at lower rates than Jewish Israelis.

Netanyahu's party overtook Gadi Eisenkot's Yashar, while the Democrats gained a seat following last week's primaries. Even with a projected majority, the opposition would not…

As in a long series of recent polls, the opposition bloc holds a clear majority. However, a boycott of Arab parties, supported by several leaders of parties opposed to Netanyahu,…