Obama withdrew all U.S. forces, including intelligence/surveillance, in Dec 2011. If Obama didn't want that, he could have negotiated terms to keep U.S. forces there. Obama created the ISIS crisis by creating a vaccuum ands alienating Sunnis, that radicalized them and turned them to ISIS. There's no way Obama didn't see this happening, and he was certainly advised not to pull out.

Obama is a Cultural Marxist radical, and combined with his beliefs in Anti-Colonialism and Liberation Theology, he wanted to collapse U.S. power as much as possible. As further evidenced by his not supporting Mubarek, causing Egypt to briefly fall under an Iran-like radical islamic theocracy (no thanks to Obama, Egypt was saved from this by a coup of Egypt's military leadership). And Obama further collapsed U.S. power by triggering the "Arab Spring", collapsing U.S. diplomatic influence across North Africa and the entire Middle East. Israel was less trustful of Obama. And even Jordan, Egypt and Saudi Arabia were less trustful that Obama could be relied on, so that for the first time they coordinated defense strategy with Israel, their former decades-long enemy. Saudi Arabia was so distrustful of Obama that when they staged an attack against Al Qaida in Libya, they did not give advance intelligence about it to the U.S.

And Israel had staged an attack early in the Obama administration from Azerbaidjhan airfields, but the traitors in Obama's White House leaked the plan to the Iranians, so that Israel had to abandon it.

So yes, it's Obama's fault, and part of a larger plan of undermining U.S. national interests, and our relationship with our allies. I could go even further on Obama's sabotage of our security relationships with Britain, Czech Republic, and Poland.