Neoliberal Democrats from the managerial class should be honest about why they don't like Bernie. It's not electability, because he's the 2nd place candidate behind a declining frontrunner and has among the best numbers for general favorability, success versus Trump overall and in key states, and support for the policies he advocates. It's not popular support, as he has broken Obama's individual donor record with 14 months until the general election, and has raised more funds from more people than any other candidate, even those with corporate and big finance in their corner.
It's not his record with minorities, who are represented in high frequency in his base of support and polling demographics compared to almost any other candidate in the running. Please stop repeating this meme.
The reason they don't like Bernie is because the focus of his candidacy, and the purpose of his life, is to enfranchise people who are uneducated, poor, and work all the time for not enough money. The comfortably middle class segment of meritocratic policy wonks gravitate towards Buttigieg and, yes, Warren because they see in those candidates a reflection of the same system that worked for them: the Ivy League education leading to petty bourgeois success in one or another sector of law, finance, consulting, business, or marketing. What is expressed as concerns about electability and age is, and I am not happy to say it, a real disdain for people who lack marketable skills and live in poverty--unless those people can be rescued from irrelevance by their superficial identity characteristics.
I echo all you wrote above. I think Bernie gets dislike for three reasons. First, because he ran against Hillary (with actual progressive policies) and Hillary was regarded as royalty people were loyal to. Second, because he speaks against the corporate Democrats as well as the Republicans and sides against both when they screw over the American people. Third, because he is an old white man, putting him at the bottom of the progressive stack.
They see in Warren, for example, someone who fulfills a shallow identitarian requirement while remaining fully committed to the technocratic vision of a future run by smart, politically savvy, financially successful people who make life-altering decisions on behalf of the rabble. Bernie rejects that entire picture of reality and is a material threat to it.
What do you mean by this? Bernie isn't an anarchist, nor will he keep the smart and educated from driving policy. It will just be more progressive policy.