We have CJDNS (which salsa20's all your data & can VPN legacy networks to ya), fully FLOSS SBCs for under $20ea, and 802.11n and AC outdoor radios can be had for cheap, this is merely a community involvement problem.
I also work at a company that has exactly this focus - to sell, and eventually produce devices that can be run with free software from top to bottom - but I don't see ourselves producing our own devices in the next 5 years, even if we would become wildly sucessful.
The hope seems to lie with ARM for the moment - C100 / C201 have even the Embedded Controller (EC) code avaiable - but they do have plans to implement something simillar to ME, AFAIK.
Also, most people already are living with the thought that their computers are cracked/hacked/virused the moment they are connected to the internet - all my friends and relatives ask me to check their computer for viruses - almost none trust their computers or phones (especially Android phones, it seems). For such people, where this is the natural state of the world, it's very hard to imagine that they can change anything about it - and telling them that there are backdoors from the moment the laptop is assembled, doesn't help much.
OPi with no build flags: [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-120.00 sec 290 MBytes 20.3 Mbits/sec 165 sender [ 4] 0.00-120.00 sec 290 MBytes 20.3 Mbits/sec receiver.
OPi with optimal build flags: [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-120.00 sec 366 MBytes 25.6 Mbits/sec 141 sender [ 4] 0.00-120.00 sec 366 MBytes 25.6 Mbits/sec receiver