To be clear, this article is about the American Red Cross (which is not to say that other branches and other NGOs aren't as bad), but if you want to know what your donation is going to support... good luck!
People, as a general rule, don't like being told what to do. They respond much better when being asked politely. We didn't develop politeness for no reason, after all. We have all sorts of negative phrases for demanding people.
As I support the idea of making people aware of the problems with the American Red Cross, it stands to reason that I'd like to not sour them on the process of learning about the reasons for the complaints.
It has been very, very socially helpful to learn to not say should and to substitute could. Relatedly, I also try to say I can relate, and not to say I understand. Just a couple of small things completely change how people respond to me.
You could try it in your everyday speech and see if you notice a difference?