Or it could be that Syria did use poison gas on its citizens again, that Russia once again attempted murder of dissidents on UK soil, and that these events require a different response than Trump’s stated goal of getting US forces home ASAP. It could all be explained by your convoluted conspiracy theory too, but your interpretation of the News is complicated, and in my view unlikely. The fact that you already have over 2100 claps for this paranoid fantasy means that Anti-American views are very popular with the Left, even with the American Left.
There is a possibility that the Gas attack was a propaganda move by anti-Assad rebels to provoke America into retaliating against the Assad regime; that is somewhat likely, and as far from the official view as I am prepared to go. If so, it was a limited success, as US counter-attacks have been measured, limited and proportional.