Left-leaning ideology is an ideology obsessed with rooting for the underdog, the poor, the deprived, the loser. As a rule, the flag bearers of this standpoint are quite aggressive—even to the point of turning violent—in their quest for saving the world from its villains. They represent David against Goliath, Don Quixote against the windmills, “Good” against “Evil”—or so they believe.  
There is a problem, though, with the left-leaning approach. Equating “Good” with the underdogs and the losers, “Evil” with the successful and the winners, is not always proper. Losers, in most cases, have brought the misery upon themselves through their own actions, and the successful, more often than not, have worked hard and legitimately before attaining their status. Of course, there are cases to the contrary, nevertheless, profiling by picking “good” and “evil” based on “poor” and “successful” respectively, is ironic, wrong and improper.
What’s more, as soon as the left-leaning ideologue realizes his dream—David has defeated Goliath and is no longer the underdog—the zealous advocate for human justice no longer supports his former hero. David has now become Goliath—a subject of abhorrence, a target for hate speech and action. Angel Gabriel has become the devil, only because he is no longer the underdog.
It is true that the state of Israel used to be a favorite among many left leaning personalities up until she won the six-day-war in 1967. That war changed the geography of the Middle East. Israel’s, unexpected, but magnificent triumph, over several, better-equipped Arab enemies, transformed her image from the underdog to the occupier. All of a sudden, the nation of Palestine, which had not existed before 1967, the smallest community of the huge Arab nation, became its own nation. A splinter set of Goliath’s teeth, a former aggressor turned loser became a favorite of the left, while the winner, the former underdog, the David, became the villain—It had won and therefore it was no longer the smaller fry.   
The same is true with Islam in Europe and the US. The “religion of hate and hubris” is referred to as the “religion of peace” by those leftists who view it as the little, innocent deer who try to survive in a jungle ruled by the Judeo-Christian carnivores (It’s actually just Christian, but the title of Judeo-Christian makes it for a more appetizing target of hate). When politically incorrect statements spill the beans, tell the true objective of where Islam is headed—world domination, Sharia Law, Dhimmi status imposition on all infidels, religious intolerance, subjugation of women, to name a few great qualities—the left ideologues cry foul. “You can’t insult Islam,” they say, “even when you tell the truth.” Islam is the underdog now.
Islam treats the left as its useful idiots; the left is being manipulated as an instrument for achieving Islam’s final objective.
The left leaning ideology is the Achilles heel of the Western democracies. The rest of us must wake up and understand that this virus can become deadly, just as it did in Hitler’s Germany and in Lenin’s Russia. We must develop early resistance, a vaccine, not a politically correct one. We must undermine the leftists’ credibility by proving that the underdog may deserve its feat; the underdog may not always have the truth on his side; the underdog may be evil just like Islam, like Hamas, like Hezbollah, like al Qaeda, just like the rest of the world’s innocent death seeking martyrs.