ANSWER:

This is what ignorant people do! They can only justify their laziness and cowardice by talking ill about others and pointing fingers. 

Ignore such people. 

What is your advice to those who complain all the time about the Ummah? This complaining includes accusing Muslim rulers and scholars of not doing enough to protect the Ummah or saying “the ummah is lost” etc.. So I would appreciate if you could respond to this.