Hmm this is complicated!!
Well, there is freedom on different levels I suppose. Lots of people have the luxury of being lazy and doing nothing because society is built up in such a way that someone else is always there to do the job, so I guess that's a social construct. Obviously, this means that many a working man won't have this freedom because he needs to feed his wife and children etc..
I think that the ability to be free also relies on the INDIVIDUAL in context to the ENVIRONMENT. Like mentioned above, you will have the archetypes of the lazy man and the working man, both situations conditioned by the person's disposition, social class, education, upbringing, among other things.
Another point: if EVERYONE was free, then no one would be free, if you know what I mean (let's assume that everyone is for themselves and no one cares about society, and we are CAVEMEN). The lazy man would be beaten by apes and eaten by snakes!! The working man would kill the apes, and eat the snakes!! SO, places like the UK and US have given many people the opportunity to be lazy and not contribute to society, while the working people are 'trapped' (unless they love their job, which is based on the individuals disposition).
So, in the UK and the US there are lots of people in fair/ unfair situations, as is only natural. But then, there are lots of people who should be WAY more grateful for what they've got in Western societies, obviously lots of us are a lot better off than third world countries.
To look at freedom objectively, and putting the word into the context that it is the ability to CHOOSE, then I would say the monks are the truly free people lol, since they choose to live that way, whether they're happy or not (I'm sure they are).
So, to SUM UP, the UK and US' idea of freedom may be conditioned by a VIEW of freedom, but they have the ability to make CHOICES- (luxurious choices!!) unlike lesser well-off citizens from other cultures.
Ultimately, it is the enlightened buddhists that are the most free!
So that's my answer! (unfortunately GENERALISED, a little naive(I'm still at school)??)