If you actually believe Warren would fight for any of these ideals. The bottom line is this, nobody could genuinely argue that it wasn't Bernie who popularized all these new ideas over the last 4 years, your own link says "The new energy on the left is all about making government bigger and bolder, an ideal driven by a burgeoning movement toward democratic socialism."

So taking that as a given if Warren really believed in enacting these things she would have fully endorsed Bernie's platform in 2016. Instead she had been vetted by Hillary for VP and was hoping for that position. She put her personal ambitions over the platform. So now we are supposed to believe that she wants this platform in 2019 while having many former Clinton employees, hobnobbing with the Center for American Progress, being praised by Third Way, pushed by corporate media and a capitalist to her bones?