The public can be easily influenced. All you have to do give them hope for a better life and future that is far more economically just that we are experiencing today.
I don't want to take anything away from Senator Sanders' message or what he has accomplished to-date. The grassroots support he has amassed is nothing short of miraculous.
That being said, how does he plan on paying for his social agenda? Let's be honest, he is talking about massive changes that will require hundreds of billions of dollars to fund the much-needed social policies he advocates ... and that we direly need.
Without dramatically reducing the defense budget at an absolute minimum of 50%, there is no way in hell of ever coming even close to being able to fund the domestic social policies we need so badly. The money to fund these policies cannot be "wished" into existence.
Senator Sanders hasn't voiced his intent (especially since he is running under the banner of the Democratic Party) to reduce the funding of the MIC to any level close to this. The only political parties advocating this depth of reduction in the defense budget are two parties who have no chance at all in winning a presidential election at this point in time ... the Green Party and the Socialist Party - USA.
Hence, his passionate fervor is quite simply ... populist campaign rhetoric.
For the record, I do not believe this is his intent. However, I also believe he is unwilling to do what it will take to deliver his social platform to the populace placing their trust in him ... face the MIC in the face and work tirelessly fighting Congress to gut their budget.