Let's ignore the DS angle for a bit, since I suspect many corporate boardrooms were opposed to Trump for more reasons than just being infiltrated (some may not be infiltrated by DS players at all). I want to bring this up because I feel that Trump and the Patriots exposed these people as well, and I'm probably only touching the tip of the iceberg.
Business Competition - Trump created an environment (by removing regulations) that allowed small / new businesses to grow and thrive without having to have the resources to deal with corrupt government agencies
Labor Market - job growth creates a tight labor market, which gives people options to move around and seek better jobs and opportunities for themselves
Labor Competition - requires companies to pay higher wages and/or better benefits
Control over employees - amazing how covid showed that many people can be productive working offsite, which made life easier for people who had to be onsite (parking, commuting, fuel costs, etc) - but now those same corporations feel their people must be onsite full time to get work done, when it clearly has nothing to do with getting work done.
Political Control - a few large corporations are easier to control from a political standpoint, than many smaller companies. The people running the large corporations benefit from having a symbiotic relationship with politicians, being better prepared (advance warning) for regulations and government manipulation of large markets. I suspect they feel they can strongly influence and exercise some control over the political side, and profit from it.
While the majority of small businesses in my sector shut down, a multi-billion dollar company started offering our services.
The service this corporation offers pales in comparison to ours, but they also lobbied to institute laws against small businesses providing the service.
Had the lockdowns been enforced with legal jeopardy no small business would have survived leaving billions on the table for the corporation to have total reign over.
The state is now also heavily regulating small businesses and turns a total blind eye toward this corporation, and the others already in the game. Luckily we are not being penalized due to our impeccable service and adherence to even the most ridiculous laws.
Trump kept the lockdowns from becoming mandate by federal decree. My entire industry survived because of that single move.
Corporate partners lobbied for the lockdowns in general, the biggest being Wal*Mart. They were, if you remember, also a big proponent of "If you see something, say something" with the DHS so they are no stranger to totalitarianism/technocracy.
These corporations ran ads day and night to social distance, isolate and lockdown. They reorganized their business models for a new economy that was based on moving everything online from shopping to doctor appointments.
Now, with the option to go in person they are fighting back by making it hard to get an in person appointment or charging premiums for them with healthcare. Stores offer discounts and incentives to shop online and have limited staff so lines are long and frustrating when shopping in person.
When you isolate people from the social aspect they will reach out for a replacement and the corporations were ready to be your daddy and mommy.