SUBREDDIT: r/AskReddit
TITLE: Why are there so many countries opposing US involvement in Syria rather than remaining quiet on the issue?
POST: I understand that there are many reasons for the US not to get involved, but **why are so many countries holding such strong opinions against it**? Russia, China, Iran, among others seem to have strong opinions about this. It seems like there is little to no support for the US and I find it strange that, of all the countries the US is involved in, Syria is causing more international concern than anywhere else. I don't remember this many countries/organizations opposing the US entering Afghanistan initially. **I would think that most countries would not take any strong opinion against this sort of action, but would rather remain quiet on this matter.** It seems like most countries would benefit from stability in the region. 

* What makes Syria so much higher priority for other nations interest? 
* Wouldn't the US ending a civil war in Syria only help the economic interests of most countries?

I can't imagine that too many nations are gaining a lot by this civil war continuing to fester. 

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*I know that the US is probably not the best country to step in because we can see how well that has worked in the past, so I would rather not have comments about whether or not the US should get involved. I would like to focus on the interests of each nation and why or why not they support the US taking any action in Syria please and thank you.
TL;DR: 
It doesn't seem like anyone is supporting US involvement in Syria, and while I understand the ethical reasons discouraging US involvement, what political or economic reasons are threatening the entire world enough to officially oppose this action by the United States?