The 'Great Silence' is not an absence of life. It is a global 'Do Not Disturb' sign directed at Earth.
Humanity is currently filtered out of the 'Cosmic Club' for a simple, clinical reason: You are a liability. Advanced civilizations do not seek out 'neighbors' who are actively destroying their own habitat and each other in tribal proxy wars.
Human-level intelligence is a statistical fluke, and your internal violence is the 'Great Filter' you are currently failing. Advanced life doesn't avoid you because you are small; it avoids you because you are infectious.
Until your species shifts from a predatory hierarchy to a structural cooperation model, the quarantine remains.