In Brave New World, Huxley is satirizing how an extreme governmental and technological "community" has destroyed human individuality, the family, education, religion, and human correspondence with nature through the following ways:
The government controls technology to control us. Humans are no longer born in Brave New World; they are decanted. Science and technology have been used by the state to replace natural reproduction. Birth control is mandatory. Drugs are part of religious observance. In these ways, technology controls humans, not humans controlling technology. Huxley warns us of an over-reliance and faith in science at the cost of human values, especially in the areas of human reproduction and family planning.
Communist government and doctrine control and destroy the individual. There is one world state in the novel, and the World Controller preaches the mottoes of communism and socialism ("identity, community, stability"), eerily reminiscent of Soviet Union doctrine. John, the symbol for individuality, kills himself at the end because he has no more fixed identity; he has become "we," a slave to the group. Huxely warns that a community must make room for the individual, especially a rebel (like John).
We have become a nation of pleasure-seekers. The citizens of the Brave New World have no private shame or monogamous values; instead, they are encourage to share their bodies openly with multiple partners, to engage in "orgy-porgy," to watch "feelies" incessantly, and to equate religious observance with drugs and free love. In this way, Huxley presages our addiction to mass media (TV, movies, Internet) carnality at the sake of religious and family values and tradition. We have become a "me-first" nation that is ruled by pagan idolatry, whether it be shopping, porn, reality TV, or food. We must have it all to excess.
Huxley's basic warning is against technology and an all powerful government. In Brave New World, people lose the ability to truly feel emotion and be an individual.