Both Trump's victory and Bloomberg's rise prove that's a bad strategy. He needs to be held accountable and challenged in-person for people to see what a snake he is, which is why the people who were saying he shouldn't be in the debates were wrong.
Speaking of Joe Biden's "Republicans will work with me" fairy tale,
Bernie's idea about how to deal with them is no better:
Joe assumes Republicans are his friends who will play ball, Bernie assumes Republicans care about what people want. Both ideas are naive fantasies that ignore the past 12 years.