I understand what you're saying, but no, I don't agree. These companies have positioned themselves so that it is often unavoidable to do business with them.
If you have a visual arts business you are more-or-less required to have an Instagram account, and maybe even advertise on it. It's where your customers and business partners are and if you want to participate in that space, you're handicapping yourself so severely by not being there that you're probably putting your business's existence at risk. It's a similar story for online businesses with Google ads and SEO, and so on. There's shades of grey in how much one decides to do business with these companies, sure, but it's pretty much unavoidable, because of how these companies worked to create & maintain their monopolies.
That's not similar to choosing to work at those companies. There are zillions of jobs out there aside from working at one of the six most evil companies in the country. No one is choosing Google or Meta as their only option. Anyone working at Meta or Google is doing so by choice.