I agree, I do not trust Asad and I believe he and his father have brutalized their own people.
At the same time, the US is the biggest state sponsor of terrorism (see El Salvador, Nicaragua, Indonesia, etc.) and has backed numerous brutal dictatorships worldwide: Chile, Iraq, Egypt, etc.
Also, the US sent detainees to Syria to be tortured during the CIA rendition programs.
Don't trust any of them
I don't trust the US government either of course... But i know for sure that many of the thing said against the US government and CIA are made up, in my country i have witnessed how group of people just make up conspiracy theories involving CIA (they even fabricate false photos, testimonies, phone calls), if this happens here, can happen everywhere, so I'm not buying any theories that easy... Here we have big laboratories dedicated to build conspiracy theories against the opposition and US, CIA, usaid etc, and this i know for sure because i have been there...
Its worth checking out this to see all thats going on behind the scenes.
Syrian War Tapestry of Terror – The Quintessential Video Exposing Media Lies About Syria and The White Helmets Terrorists (50,000 views and climbing)
https://clarityofsignal.com/2017/06/22/syrian-tapestry-of-terror-the-quintessential-video-exposing-media-lies-about-syria-and-the-white-helmets-terrorists-50000-views-and-climbing/