Of course, but I guess the fear is %99 of people will use the “default” wallet” and be locked into a surveillance system for all transactions online.

To your question, not necessarily kick them out intentionally, but if the companies that back the hardware to validate transactions fold, are taken over or pull out of the venture, then the number of validators diminishes and you can end up with something resembling a 51% attack [1] which gives a single corporation total control.

This is a problem with all crypto’s unless something is special about Libra which is possible I guess. Then again, even in this case, the dominate player(s) could change the protocol to work in their favour removing the need for x number of validators present.

[1]https://www.investopedia.com/terms/1/51-attack.asp

Given Facebooks quickly diminishing popularity, I’m not sure this is ever going to really workout anyway.

Proprietary blockchain. Supposedly they ~may~ just ~may~ release the documentation in a few years.