Journalists who would never, ever consider working for Fox "News" continue to give their work -- free -- to Twitter.

They surely know that they're supporting a business controlled -- and manipulated in ugly ways -- by someone at least as malign as Rupert Murdoch. They're giving aid and comfort to someone who hates journalism and amplifies anti-democracy memes.

They could, instead, use the fediverse and control their own destinies.

How can they be helped to grasp this?

@dangillmor
Get them to reprioritize. Their goal should be to report news, not generate profit for shareholders.
Then perhaps they'll see that Twitter is not where they can reach that goal.
Right now those left on Twitter don't read the news because their cult leader has convinced them it's all fake news.