You must admit, this is a significant win for Sanders (Disney first, now Amazon). I agree with you that progressive policies have been dismantled over the last few decades, but would argue that the electorate is engaged enough now to claw back those losses (majority of Americans support universal healthcare now, for example).
My point was this is not the last win for Sanders and those who align with his progressive policies. Efforts will continue to drive up the minimum wage in all 50 states.
March forward? If anything there has been a dismantling of "progressive" economic policies over the last few decades. To the benefit of the economy.