The difference is that if someone in NATO were to pull what the Taliban does they would be subject to trial and punishment whereas the Taliban would approve. Terrorizing the populace when it's seen as a useful method of control is SOP.
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While Kyplebisme gave you one version of an answer, I choose to give you another. If you look at it from the eyes of the Afghan people.
Granted, the ruling at the time of 911 Taliban were rather vicious, but they rose to power simply because they were better than the very corrupt government consisting of warlords and drug dealers fighting over turf as a powerful few simply exploited the bulk of the 31 million strong Afghan population. When the Taliban came in, the Afghan people willing to play by Taliban rules at least received protection and governance from what before was total anarchy.
Then Nato came in with a can of whipass and once again destroyed all Afghan governance.
Had the Karzai replaced turned into that even better government to replace the Taliban, I would not be writing this. But sad to say, it was no better than the corrupt government the Taliban replaced. Maybe there is some democracy in Kabul, but it extends no more than 10 miles out of the Kabul. Meanwhile Afghan courts don't function except by bribes, the police and the army are thieves, And there is no way the Afghan people will buy that turd of a government.
Meanwhile Nato has far too few troops to control Afgahistan, but every once in a while so Nato poo-bah gets a wild hair up their butt to pick some given area and have a massive offensive. Forcing the civilians to flee their homes for months, while the Taliban melts away like smoke, at which point Nato comes in and trashes the place, declares it Taliban free, and as fast as the Nato troops leave, the Taliban comes back. After 10 years of Nato accomplishing nothing, yes the Afghan civilians prefer the rule of the Taliban to the anarchy and corruption of Nato. I have been pointing this out ever since I joined this forum, and saying Nato can't win in Afghanistan until Nato altered its policies. And stayed and built stable areas.
I have been roundly vilified for my stance, and lack of rah rah patriotism, but regardless if I shut up or not, Nato is now further from winning in Afghanistan than it was six years ago.
Meanwhile back in Israel, maybe this forum looks at the Israeli Palestinian conflict through only an Israeli viewpoint, but the the bulk of the rest of the world increasing favor a Palestinian State. As Bozo Netanyuhu credibility is now is at dead zero in the international community.
Nor are my views unique, many rational Jews in Israel are saying exactly the same things.