Perhaps they did. The only reason I even replied to your original post is because with: "...hate Trump for executing the Syria strike where ISIS actually is operating..." you suggested a false equivalence that bombing Assad's facilities is fighting ISIS.
Perhaps that was not your intent and it was a writing failure rather than a logic fail.
If so, Nevermind, as Emily Litella used to say.
I actually don't believe that there was any genuine ISIS involvement in the Vegas slaughter. There might have been some Saudi involvement, but proving that will be harder than proving that Assad DID order the use of chemical weapons, OR proving that he did NOT order it.
The same people who believe ISIS did Vegas believe ISIS did the “false flag” chemical attack. So why would they be against the US operating in Syria? They are the same ones who moan wanting us to have no troops in Syria whatsoever.
They are pretty easy to spot and are the ones having a logic fail.