How does the book Fahrenheit 451 reflect on our world?

Fahrenheit 451, though written in 1953, still reflects many negative aspects of our own society. These include political correctness, anti-intellectualism, and over-reliance on technology.
Beatty, who is the voice of orthodoxy in the novel, explains that what we today would call political correctness was one reason his imagined dystopic society started to ban books. If a book was offensive to a certain group, the society got rid of it. As Beatty states,

Coloured people don't like Little Black Sambo. Burn it. White people don't feel good about Uncle Tom's Cabin. Burn it. Someone's written a book on tobacco and cancer of the lungs? The cigarette people are weeping? Burn the book.

This is completely relatable to our own time period. So many books are not taught or are taken off library shelves because they offend some group. Bradbury objects to that, as he believes that books help us to learn from our mistakes, and many in our society would agree with him. At the same time, many side with Beatty.
Beatty also points out the anti-intellectualism in his society. In his world, as in ours, it was considered weird to be too intelligent or to ask too many questions. Beatty offers the orthodox view on this subject as he comments on Clarisse:

The girl? She was a time bomb. The family had been feeding her subconscious, I'm sure, from what I saw of her school record. She didn't want to know how a thing was done, but why. That can be embarrassing. You ask why to a lot of things and you wind up very unhappy indeed, if you keep at it. The poor girl's better off dead.

In our society, too, there is a lot of pushback against intellectuals, who are often ridiculed as "elitist" or out of touch, and there is an emphasis at the university level on gaining practical skills rather than engaging in majors like literature or philosophy, which engage the mind and can critique society in healthy and constructive ways. Many have argued that today, an uninformed and unthinking populace is easily swayed by demagogues in politics and that we elect ignorant people over knowledgeable people because we demean knowledge and intellect.
Finally, like the people in the world of Fahrenheit 451, we too tend to rely too much on technology. We too will get in a car and speed somewhere rather than walk; we will, like Mildred, pop pills rather than face our problems; and we will, like Mildred, immerse ourselves in media like the internet or streaming cable television. This is not to say there isn't an argument, in Bradbury's imagined world or our own, for relaxing over a cat video online, but in both worlds, people over-rely on the mindless at the expense of the valuable.