@georgeob1,
As you kind of agreed that America (and half of the world, even China and Australia) did fund terrorists who fought the USSR in Afghanistan and who later took over and became the Taliban and Al Qaeda. From Al Qaeda's Syrian/Iraqi faction comes ISIS. This is a known fact, perhaps you need to educate yourself little more.
But I won't stop there.
America is also partially responsible for creating an environment where ISIS could survive.
We don't have the greatest track record for helping the people of the Middle East. We helped take down Muammar Gaddafi, who was without a doubt better for Libya than the current “government” there; to quote old Ben Kenobi, “you'll never find a more wretched hive of scum and villainy,” which is really a shame, since Gaddafi (who was by no means great) had a lot of policies that encouraged education (literacy rate skyrocketed, programs that even had the government pay your bills to help you get an education abroad) and protected his people. His last words were something along the lines of “What did I ever do to you” while he was being slaughtered by his own people.
Saddam Hussein was another nut job who was far better than what's happening to Iraq now. Interestingly enough, America did support Hussein when he was fighting Iran, but we used his invasion of Quwait to take him down (even though Quwait started the conflict by trying to seize Iraqi oil fields).
So you can understand why Syria is hesitant to let go of the Ba'ath Party (which Russia has supported for decades, since the times of the “Empire of Evil™”) and Bashar al Assad. He's not perfect, but he's a hell of a lot better than ISIS, who has had a strong presence in every country whose government we've taken down. Assad also demonstrably didn't gas his own people, there's plenty of evidence that the Syrian government has no chemical weapons and the rebels were the ones who carried out the attack.
The American government has been supporting anti-Assad rebels. As in, Al Nusra, which is an affiliate of Al Qaeda, and the FSA (Free Syria Army) which has ties to ISIS. These are the main groups fighting Assad, and, as they're all now Islamist terrorist groups, they've lost any shred of legitimacy they may have originally had in their struggle against Assad.
So yes, the Western World (not just America) is responsible in part for creating ISIS, directly and indirectly. ISIS doesn't even go after our friends, like Saudi Arabia and Israel. They're Sunni (Wahhabi, to be exact, which emerged in our “friend” Saudi Arabia) in a place where America generally supports Sunnis and Russia swoops in to side with the Shiites (not as clear cut as that, but it's a trend I've noticed).
I understand that's it's all a geopolitical game of risk assessment and damage control, and America thinks that its interests are more secure without the secular, decent-enough leaders like Gaddafi, Saddam, Assad and the Shah of Iran, but that does not mean the American government is in the right, or has the right, to do this.
And with the threat of Islamic extremism and the massive Muslim migrant crisis, it's biting us all in the ass, now. Hard.
WE (AMERICANS) CREATED OUR OWN PROBLEMS.