We have layoffs for exactly the same reason we have homelessness. Both are expensive, harmful, and unnecessary. Both are sustained anyway because capitalism requires that work is compulsory. Both exist to be used as a threat to compel work and deference from workers.

So, I don't know. Keep writing papers and articles about the real effects of layoffs, I guess. But please understand that you'll never convince boards and CEOs to stop doing them, because the harm of layoffs is the desired outcome. So make your audience the people who've been taken in by their lies, and the people who should be protecting us from them.