There are still divisions, though probably not to the same degree as the US, and with so much variety. Cops are pretty well trusted here (they're not armed of course). There is some support for BLM among the black community, but not nearly as much as over there, and there isn't really this same "us vs. them" mentality. There is a lot of distrust of the government and parliament at the moment but not really any major fears about surveillance or privacy.
The trains here are pretty awful. Because the railways are privatised different regions have different operators. My home is serviced by First Great Western. The trains are pretty old, but they're fast, offer food, relatively comfortable, and have Wi-Fi, though they are frequently late. Where I went to university is serviced by Southern Rail, who are by far the worst operators in the country. More than half of all services are either delayed or cancelled because the staff are on strike, they're not comfortable, and they're always overcrowded. A lot of places aren't particularly well linked either because our rail network is the oldest in the world, and more than a third of lines and stations were closed in the 1960s in what was known as the Beeching Cuts.
Rent depends of which city you're in. In Cardiff you could rent somewhere for £200-£300 a month. It wouldn't be particularly nice, and would probably have a mould problem, but you'd get by. In London the cheapest flats would be at least 3 or 4 times that. London is an incredibly expensive city to live in.
In terms or pastimes drinking is certainly up there, we'll take pretty much any excuse to get on it. Soccer and Rugby are widely viewed and played. Cricket a bit less so. Formula is popular here as there is a lot of British investment, but not much else in the way of motorsport besides BTCC. Wimbledon is always very popular every year but most people's interest in tennis does not go beyond that. American Football, Baseball, Basketball and NASCAR are not very widely viewed, followed, played or broadcast here.
There's a lot of fairly good TV. Most mainstream US Shows are broadcast here but we have plenty of our own stuff too.
We are a proud nation, but we're a very small one so we don't anywhere near the sphere of influence the US has, we know about other countries and cultures, whether or not we take an interest in them is a different matter.