These off the cuff remark are the typical 'armchair commentary' we get in HN and somehow they get a lot of votes, but they are really low grade 'feel good' efforts.
While FB/Meta is in a vulnerable position, they still make 30B+ a quarter, and a net income of 10B.
Google in such a strong position, that it seems there will be nobody that will/can disrupt it, even though their search results haven't been the greatest.
Even if they got 'broken up' by the regulators, Search, Youtube, Google Apps, entities by themselves will probably be bigger and employ more people combined (the Baby Bell, breakup is a good precedent of it, where the sum of the pieces was larger than the original company).
The reality is tech is becoming more and more important for everything in society. Eg. Cars: Tech was about 10% of the cost of a typical car in the 90s, now is over 35% and increasing. Cars can't be build because lack of chips and not lack of manpower or aluminum/steel.
The pandemic increased the acceleration of all tech by at least 5 years, and increased demand overnight. Even when things start normalizing, some of it will stick along, as for many people the day to day life has changed, and some 'work for home' or hybrid work is here to stay.
Will we see soft hiring seasons? Absolutely. In the next recession, probably hiring will be softer, and people will have harder time to find a job in the short term, (think 2008-2009), but expect in the long term that technology will take a higher percentage of the economy and tech hiring will be going up on the long term.