If your company is already profitable to the tune of billions annually, "cost cutting" isn't necessary. You're just cutting people out of jobs and out of economic participation in society -- which affects a far larger group than just themselves when those folks can't spend their salaries in other businesses.
There is no justification for "cost cutting" when it hurts the larger economy. If the company were losing money, that would be different, but these mass layoffs are all from firms that make obscene, enviable levels of profit. It's greed.