Anti-Israel protester in London (archive)
Anti-Israel protester in London (archive)Reuters

Anti-Semitic crimes in Britain rose 25.7% in 2015, the Campaign Against Anti-Semitism revealed Saturday night - and a pact between Islamists and the Left is fueling the hate. 

2015 remains the worst year on record for anti-Semitism in the UK, CAAS's National Anti-Semitic Crime Audit reports.

Violent anti-Semitic crime jumped 50.8%, with 16.9% of anti-Semitic crimes being violent in 2014, and 20.3% of anti-Semitic crimes being violent in 2015. 

Only 13.6% of all cases are prosecuted, however - with a 7.2% drop in police action against anti-Semitism in 2015. 

"Britain has the political will to fight antisemitism and strong laws with which to do it, but in too many cases, those responsible for tackling the rapidly growing racist targeting of British Jews are failing to enforce the law," the report states. 

"If the situation continues to deteriorate, the Jewish community will be faced with the kind of rampant antisemitism seen in other European countries, which has left Jews feeling fearful and abandoned, many of them convinced that they have no choice but to emigrate."

The culprit, it says, is "growth in anti-Semitism as a core part of a far-Left and Islamist ideology" - which started with pervasive anti-Israel propaganda during Operation Protective Edge in Gaza. Anti-Semitism skyrocketed during summer 2014 and has stayed consistently high since then, it noted. 

In addition, the report theorizes that anti-Semites are simply becoming more active as opposed to significantly increasing in number, following a spike in both Islamist and far-Left activity in Britain in 2015. 

The study follows a damning series of anti-Semitic statements from the far-Left Labour party, which is under intense scrutiny for an unending train of attacks on Jews. 

Along with the dozens of anti-Semitic or pro-terrorist statements Labour MPs have made recently, Labour leader Jeremy Corbyn is himself a Hamas and Hezbollah sympathizer, calling the terror groups his "friends."