What exactly does OP want?

Bernie to pull out an automatic weapon or something? He’s an elderly politician. He’s also one of the only morally good politicians we have at this point in history.

I fail to understand why the Democrats haven’t chosen him for the presidential elections - the 2024 and 2020 ones

More accurate if the DNC was Lucy and Bernie was Charlie in this scenario. Bernie isn’t out there pulling the rug out from under us, he’s standing with us on the rug while the DNC pulls it out from under all of us.