Some wag has written a statement that went around online that goes something like, “Some people can learn from books and lectures. Some can learn from the experience of others and there are some who just have to pee on the electric fence themselves.”

Most of humanity seem to fall in that last category, so they cannot learn from history, which is learning from the experience of others.

Then there are the Jews, many of whom seem to be incapable of learning altogether, not even from peeing on the electric fence themselves.

For one thing, we fight an enemy who declares the intention of “ending the Jewish presence in the Middle East,” meaning destroying us. And we stop while the enemy is still able to rearm, regroup, replenish its ranks, upgrade its tactics and capabilities and fight another day. And then we do it again. And again. And again! How many times do we have to pee on the same electric fence before we catch on?

How many Arab workers have worked peacefully at their jobs for years only to become terrorist murderers one day? The Har Nof pogrom is not something new under the sun, not at all. One of the terrorist murderers worked next door and had ample opportunity to case out the synagogue. Then, one day, he became a terrorist murderer, using his knowledge to perpetrate multiple murder and mayhem.

The “peaceful worker” at the Begin Center who shot Yehuda Glick was not the first one either.

Back in 2002, a “peaceful worker” one day planted a bomb at the cafeteria of the Frank Sinatra Center at Hebrew University, killing seven and wounding eighty five. The next day, he was just another “peaceful worker,” cleaning up the carnage he had caused. He was not the first either.

But when Mayor Shimoni of Ashkelon took the logical lesson from the Har Nof pogrom and suspended the Arab workers at the municipal offices, it drew howls of indignation from our leaders, demanding perfect democracy with no discrimination, no matter what.

Prime Minister Netanyahu declared that there is no place in Israel for discrimination against Arabs. He did not add the words, “no matter what,” but it is clear. Even the “right wing” economics minister, Naftali Bennett, could declare that the overwhelming majority of Israeli Arabs are loyal to the State of Israel. He did not share with us any evidence leading him to such a belief.

On the contrary, Arabs celebrated the mass murders openly in the streets and Arab leaders rushed to the microphones to laud and justify the deed and declare the depraved monsters to be “martyrs” and worthy of paradise. We are not allowed, however, to draw conclusions from such facts. That is not politically correct.

In law, as in life, discrimination is invidious only if there exist no rational grounds for making the distinction. Our leaders ignore the fact that we are simply not smart enough to know which of the peaceful workers today will become a terrorist murderer tomorrow or the next day.

All of this has been going on for decades now, one government after another, no matter which party leads the government. And we, the voters, keep on shunning new parties with alternative outlooks because our media, which are firmly brainwashed with the same political correctness, tell us that they are “extremists.” We go on electing the same ineffectual, spineless puppets, election after election. All we do is reshuffle the seats.

That too is an electric fence. How many times are we, the voters, going to pee on that fence before we catch on?