Stop with the virtue signaling you must be based in the US by the way you talk. Sunni this and Sunni that has no place in your critique of Sharaa.
What do you want them to do? You're gaslighting and seem to dislike Sunnis.
These countries don't care about exporting revolution or see firing rockets at Israel as being effective. They don't have a military leverage, especially war torn Western Syria that Ahmed Sharaa controls. And these nations have a lot more to lose than you, you'll only see them act when they're threatened, if Israel expands into the region.
If US withdraws from Syria then Syria will become a powerful Arab nation with help of Turkey and others. More than anything AoR could come up with. We all know it. Which is why US refuses to withdraw.
Turkey can develop Syria and make it powerful 5 years from now if US withdraws. Turkey has robust indigenous military industry.
Hezbollah was a major let down and weakest point of axis of resistance. Imagine trying to gaslight people into thinking Syria should go back to AoR rule so Hezbollah can get weapons (that they refuse to use and when forced to were very ineffective).
I hope for your own sake you move away from sectarianism so we can have rational discussion.
There's nothing Ahmed Sharaa can do about Gaza besides speak out, which he has done. He also refuses any security agreement with Israel due to Israeli occupation of Golan Heights. Nobody is coming to save Gaza, not Iran , Hezbollah or anybody else. It's will of people of Gaza and Egypt firm stance against displacement which is why Gaza has survived. If US crosses this line, then the region will be plunged into an war with unpredictable course -- which I believe would be serious and deadly