I am saying they don't belong in the first catagory or any of your catagories.
"First, and most commonly, there would be those who understand things the least. These folks would be the happiest because simple minds are content with simple pleasures. Indeed, they’d be happy in so far as they’re being exploited — by their instincts, their evolutionary drive, and by the predominant forces in society. These workhorses would have little ambition to be masters of their fate. Thankful for their blinders, they’d lack the alienation that comes with idealism: they’d have no suspicion that life generally is absurd and nightmarish because they wouldn’t be caught up with meta perspectives or with visions of how things generally should be."
We are understand better than you think. We are informed and know that life is quite often absurd. We are the masters of our fate; we choose this life happily. You don't have to be ignorant to choose happiness and love and not tilt at windmills or trying to amass useless wealth and possessions. We choose not to turn what can be joy into a painful struggle or an unsatisfying pursuit.
While this is a Christian expression of the philosophy it describes an attitude that apply to even atheists. Except for the God part and life after death.
"God grant me the serenity
to accept the things I cannot change;
courage to change the things I can;
and wisdom to know the difference.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
Taking, as He did, this sinful world
as it is, not as I would have it;
Trusting that He will make all things right
if I surrender to His Will;
That I may be reasonably happy in this life
and supremely happy with Him
Forever in the next.
Amen."
Lumping us in with your category of "unenlightened workhorses" is inaccurate.
Many of your "unenlightened workhorses" are as or more enlightened than you.
TEK