Some people are only good at complaining. They have even mastered it by now. They choose to complain about anything. Always negative in positive things. When you say to them . Let's all contribute. Let's start or do something. They will never participate, but they will be waiting to complain. They never have an input, but are always complaining about every output. Choose not to be close to such people and choose not to allow such people to bring your spirit down.? Always? shaming , discouraging those who are trying and their efforts, but have nothing to offer. If they haven't done, what you are doing. Then what they say to you about it .Shouldn't matter.