From the stuff I'm reading, the layoffs that are happening are mostly cutting unprofitable programs, or unnecessary support staff. And in very small numbers (5% or less).

At this point, I'm not sure what we're really discussing since this started out as talking about how above average tech salaries are at these top-tier companies, both in terms of the industry and in general. My only point was that I don't think unionizing would be beneficial to increasing tech salary or to preventing there layoffs. Where they would be useful is more consistent treatment of employees and adherence to their own policies.