Here is my tid-bit of advice. Even if you don't use 100% free software- avoid
as much of it as you can. I seriously doubt anybody is going to argue against
that. While I'd agree with the sentiment of why use Trisquel if you don't
care the reality is you do care, but it can be a difficult/near impossible
proposition to switch to completely free software/hardware in an instant.
Switching takes time. Be it a week to get a wifi card or even years- if your
switching careers to avoid it.
There isn't a single user here who isn't using some non-free software. That
isn't an excuse to use non-free software. It's the reality. We can pretend we
aren't, we can avoid Debian, Ubuntu, and Linux Mint (which are more and more
non-free the further you go in that list), we can buy the free software
friendly hardware, but at the end of the day the reality is everybody is just
avoiding non-free software to the extent each is individually technically and
feasibility able to.
Short of a near unusable configuration (hardware that may only works for a
few months and be extremely slow) or abandoning computers altogether I know
if no way to completely eliminate every bit of non-free software (and even
then it might not actually be abandoning it completely) at this time no
matter how many thousands you might have to spend on it.
We're all dependent on non-free software in some way- even if it's merely by
extension (ie the food companies that deliver the food to the grocery stores
depend on non-free software to manage inventory, etc).
Push for free software. Do what you can. Don't let these things stop you from
caring. If you can't pull off switching today save it for another day. Just
keep making progress as best you can. Don't become comfortable with what you
have achieved thus far. Keep pushing.