The surest way to create the collapse of a society is to excruciatingly disenfranchise people from their dreams and desires.
Who should you be afraid of? The person who has done their best and suceeded but it was never enough to own a home or seriously consider starting a family and now they are too old for that dream to ever not feel bitter and angry about it.
You should be terrified of the legions of people in that position in the US, they will end this status quo decisively for better or worse.. and "better" likely ain't an option anymore since centrists foreclosed the "better" option by rabidly attacking the bold progressive platforms of hope and change that could have reached these people before they regressed to pure zero sum conservative nihilism.