What you call individualism is the result of collectivism. Collectivist-altruist philosophy and tribalism is what leads to people who can't think or properly defend their positions. A lack of individualism is the problem. An individual necessarily must think and use reason in this world. A collectivist follows a tribe and uses violence or fallacies because he has nothing else to offer.
Most people cannot think. They outsource their thinking all the time to their percieved betters. It's been this way since the dawn of human civilization. Plus, humans are tribal by nature. We're social creatures who are part of communities. Maybe that's family or your town or whatever. I can get behind the idea that as individuals we must invest ourselves completely in our communities, though.