Public sympathies
Being seen as pro Palestinian might be a voter winner, so perhaps the contretemps in Rochdale might not be so problematic for Labour and their candidate.
Interestingly the criticisms of Israel/the pro Palestinian comments of The Lord Cameron of Chipping Norton might also boost the Tories however salience applies here. Things like the NHS, the economy, and dentists will determine how most people vote not events in the Holy Lands.
TSE