There are many similarities between our world and BNW. I think the most interesting is the use of propaganda to control our thinking. In BNW they have the mythical "hypnopedia" which repeats valuable social lessons to children a specified number of times until it becomes part of their thought patterns. Thus "ending is better than mending" becomes a part of their world view as well as "when the individual feels, the community reels." The aim is to limit though by "building in" appropriate thought control.
Thought control is alive and well in our world. Most of our information comes from the decisions that other people (writer, producers, publishers, bloggers) make about what we need to know and, more importantly, what we need to know about it. There is question on the history board that asks whether television lost the Vietnam War for America. It was the first example that I remember of "news" reporting that was aimed at influencing rather than reporting. Since that time I have studied the "news" and discovered that much of it is formational rather than informational. It has already been admitted by some media outlets that their goal was to aid in the election of Obama, not report the facts. This is impossible to prove or even demonstrate in this small space, but I would suggest you watch the "news" for a while and watch what they report (and what they don't which may be more important), how much time they spend on what they report, the language (positive or negative) they use to report, and (an interesting one) what they report that has no clear relation to the news, but which they decide to include (eg. the "Person of the Week" --- it's almost never news and usually propaganda for their point of view).
The internet, while (perhaps) more democratic, has a similiar problem ... there is so much stuff out there that it's almost impossible to spend the time verifying the facts or even checking on the reliablity of the source. It's the opposite of the old problem of not enough information ... too much is almost the same problem.
Although BNW does not even have the telescreens of "1984," I think it is chillingly accurate in its prediction of how this new media would be used for propaganda purposes. There's an interview between Huxley and Mike Wallace some 50 years ago that would make for interesting viewing. It's in 3 half-hour sessions. The link to the first of the three is posted below.
I believe that today there is greater tendency for people to be more like each other. But this tendency is in no way like the centrally planned and imposed similarity of Brave New World.
Reason for greater similarity between different people can be described in one word as "globalization". People develop in different ways because of the their different culture, and different information they are exposed to. But in today's world there is a tendency for the hole world becoming one big global village. The differences in cultures between different countries, and different classes of people is narrowing. Then with the information revolution people are exposed more and more to common information and education.
Also because of globalization of trade and industry the work demands placed on people of different geographical regions becoming similar.
No wonder that people today are more like each other than they used to be in the past.