What does bring left together?

What is common between an "professor of military history of TA university denying existence of Jews with some "communist party Swedish activist blackmailing H&M ". Why do they share the same reactions and ideologies; as a arrows of magnet they have turn together and try to damage Israel.
Why do history of Israel has a long list of ideology espionages where left communists journalists communist party leaders fight against Jewish state?


To answer this question we should look on this cornerstone of left ideology "Week has right" which replaces the original jewish :"It is good to help to week people."You can see that the first one is building on the most ugliest human sins "enviousness, jealousy".
Can sound in many different way: I always be on the oppressed side.
The road to hell is paved with "good intentions". When the person accepted this universal false that "week has right" it opens Pandora box with a lot of other sins, justifies them now is allowed to steal and kill the "STRONG" part.
Thats why left parties (which always wanted best for the people) killed more people when all
diseases together.
Of course this deep amoral build on the universal human weakness principle would work universally.