That's TOTAL BULLSHIT. Bashar Assad is the lawful President of Syria. They're the military wing of a US/UK/French and Gulf Monarchy-backed attempt at "Regime change". The same FOREIGN JIHADIST PRICKS, being called DAESH in Syria and Iraq, were also used against Qaddafi in Libya.
Why, you might ask? Simple. Assad is an Ally to Russia and Iran - and in some small ways, he's resisting NATO Empire initiatives, aimed at achieving a Global Monopolar Hegemony. FOR INSTANCE... There's a plan in the works to run a natural gas pipeline, across Syria, from the UAE and Qatar, going to the Mediterranean - to sell the gas to Europe. The goal is to steal Russia's natural gas market share (as with Joe Biden's terrorist attack on the Nordstream Pipelines). Syria said "No!". The group behind the plan is a bunch of NeoCon Zionists (The Rothschilds, The Clintons, Dick Cheney, etc.) called Genie Energy. Go ahead and look that up, if you don't believe me. They're STEALING SYRIAN NATURAL GAS, in the illegally occupied Golan Heights (aka "Trump Heights"), RIGHT NOW.
There may be a bunch of DUMMIES involved with ISIS and Al Nusra (aka HTS, aka Jaish Islam, aka Al Qaeda, aka "The moderate rebels", aka the FSA), who don't understand that they're actually working FOR America and the UK and the Zionist Entity... But that doesn't change the facts. DAESH was fighting AGAINST the indigenous fundamentalist "Taliban" in Afghanistan. Read that wayback-machined PressTV article I sent you in the thread above. And that 100% checks out. In Yemen Al Qaeda in the Arabian Peninsula - was fighting AGAINST the Ansar Allah "Houthis" - as part of the US, UK, French and Saudi War of Genocide.
Now where the f_ck are they, when Palestine needs support? Answer: They're hanging out with the US MILITARY AND CIA at An Tanf, in Syria, right next to the Jordanian border. The Houthis and the Iraqi Militias are the ones fighting back, as part of "the Axis of Resistance". Whoever told you that "The Caliphate" was fighting the US - LIED TO YOU... Or they didn't know a damn thing, and demonstrated that, by spreading their confusions, to you.
Assad is a moderate Arab socialist leader. Like Qaddafi, he's light years better than the homicidal maniacs trying to make overthrow him.