The phrase "sweeping generalizations" means making broad statements about a whole group of people or things without considering individual differences or specific instances. Full definition
Translation: «I am a hysteric who make sweeping generalizations about people who think differently than I do. (religion.blogs.cnn.com)
But don't you dare go making sweeping generalizations of secular people who are kind, peace loving and law abiding... unlike some people of faith who harbor child abusers within their own confines. (religion.blogs.cnn.com)
All I have seen you do is make broad sweeping generalizations on what YOU think atheists are... (religion.blogs.cnn.com)