See also Mic,[1] which laid off its entire editorial staff in response to the formation of a union (but prior to a contract being signed).

For counterexamples, see Vice,[2] which negotiated a nearly 30% pay hike in their first union contract, and Slate,[3] whose editorial union recently negotiated a $51,000 starting salary with annual pay increases.

Note that a union is not a guarantee against layoffs. See [4]: the Huffington Post recently lost 15 of its unionized employees to a layoff. On the upside, they were contractually guaranteed severance pay - because they collectively bargained for it.

[1] https://www.businessinsider.com/mic-layoff-bustle-union-labo...

[2] https://gawker.com/vice-writers-get-a-union-contract-with-a-...

[3] https://wwd.com/business-news/media/slate-media-editorial-st...

[4] https://twitter.com/HuffPostUnion/status/1088524725259628544