I work in this industry and recently changed jobs in the past year. These are my thoughts:
1) They're not going to have any issues finding high paying jobs. Like zero. A lot of these companies who are firing people are actually still hiring, lol. I think a lot of this is a coordinated effort by the big players to try and knock down salaries some. They have so much money in the bank, there is little reason to make such cuts unless you're trying squeeze the workers bargaining power. I have recruiters calling/contacting me EVERY day for a job. Most people have no comprehension of being in an industry that's so in demand that you're getting called daily. Yes, even this week I was contacted multiple times.
2) The guy is right, so many people think their job is life or death, and then when they cut out of the blue after a couple decades they're just lost. You should care about your company as much as they care about you. No more, no less. And in most companies, that level is care is so small that you shouldn't care at all.
3) Most of the time, you know who the employee's worst enemy is? Themselves. It's because they get comfortable in a job and don't ever look for other options again, even though the job might be 10x better and the salary 25% to 50% higher. My old employer said "everyone back in the office 3 days a week minimum, no exceptions". I was like ok, I'll just go get a raise from someone else and work remotely full time for them. Most people won't do that, they'll just bend to the employer. The employers have no leverage currently, the sooner people realize that the better. I would bet that a large portion of the people laid off this week will get a raise and even better job than they had at Google, and wonder why they didn't do it sooner. You have some overpaid people, but in these large corporations there are vast amounts of underpaid people who have been there for years and have been getting subpar raises.