In short:
We are essentially being forced, without even being told, to run buggy proprietary code in a very powerful and very capable hyper-hyper-visor of our OS, which can (benign or maliciously) control both the (free) software we run and the hardware we "own", without our knowledge.
(See also in-line comment below..)

Greetings,
Jann
PGP 0xE7A47A578A30148A