Jews in the diaspora should be reading the news and be just as informed as if we were in Israel. If you do not know what is happening you cannot properly advocate, protest, pray, etc.
If you are reading everything that is going on, I find it hard to believe that you would not be moved to action.
I think that all of us should be working to our strengths and potential. If it means hopping on a plane to be there, do it. If it means sharing news with others via social media, do it. If it means organizing a rally, do it. If it means writing a poem, singing, or any other artistic expression that you feel would be effective, do it.
The key here is informed action. Both are essential during this difficult time.