Why was Albert Einstein criticized?

Answer 1

He had many theories and explanations for the unexplained things but when he shared his thinking with others many thought that his ideas were stupid

Answer 2

Albert Einstein was criticized for his theory of relativity, which challenged traditional physics concepts. Some physicists at the time did not agree with his ideas, and there were debates about the implications of his theory. Additionally, Einstein's pacifist views and political activism also drew criticism from some individuals and groups.