Well, yeah. Assad and his father killed off tens of thousands of Muslim Brotherhood trash which set the MB and their al Qaeda terror division, back 50 years in their plans for the Middle East.
Obama is the MB's man in the White Hut, and is settling old scores. Same reason for Mubarak and to some extent Qaddafi.
Read Never Forget Qatar's role in 9/11 for one overview on that background, and also Daniel Greenberg's piece about one of our Syrian Rebel "facilitators" and his connections with the DNC, the White House, and McCain,
"Meet the Syrian Islamist Organization Controlling Senator McCains Agenda"
This is the sleazy slight of hand you use to implicate the US.
You make this statement sourcing a NYT article in your #4:
“Previous arming of Syrian rebels has resulted in most of those arms going to “other than moderate” Syrian rebels[4]. Those rebels have gone on to become ISIS/ISIL and now Islamic State.... They are now much more powerful than they were, due partly to active assistance from the US.
The actual citation of your #4 source states:
“Most of the arms shipped at the behest of Saudi Arabia and Qatar to supply Syrian rebel groups fighting the government of Bashar al-Assad are going to hard-line Islamic jihadists”
There is not “active assistance from the US” just active BS from you.
Both of them?