I don't buy into the echo chamber bullshit. At least the way people look at it. Folks went to places with people they got along with weather it be bars, or church, or clubs, or whatever. The echochamber is more something a person needs to do individually. Maybe get out and converse with someone from another club or do a diverse enough amount of stuff that you will encounter some folks with differeing views but you don't need to make your day to day annoying. Keep an open mind but you don't have to abandon everything. Its like lets take a chrisitian with a liberal enough faith philosophy that they accept multiple faiths views on gods even if not their denomination. Now expecting that same person to be open minded about a group that believes and and worships satan would just be rediculous. Its funny I am using this example though because I am athiest but I was looking for something were a person was flexible but not willing to throw out the core idea.