I've said it before in another thread in a more long winded way but of course everyone has all the same rights but what allows people to move ahead and get far in life or not is how everyone else treats you. It's not about rights, it's about how people are treated based on something that can't be changed. It's sad that people have prejudgement suspicions and fears toward black people. That's the problem. I mean come on, the US had a black president so we know black people can still reach that height but when black people get the police called on them for doing nothing there's a problem.
People have prejudgements about each other for all kinds of reasons - gender, race, social class, what they're wearing, their accent, their age. Lots of things, many of which a person can't change. The video you posted - the black dude was sitting on a wall outside someone's property. If I saw someone (of any race) doing that then I might wonder what they're doing. I doubt I'd call the police though. So yes, I think it's fair to say that whoever did that was over-reacting and the call was probably motivated in part by the guy's race. But the reason for that is statistically black people commit a statistically disproportionate amount of the crime in the US. That isn't because black people are inherently more violent or criminal but simply because crime is correlated with poverty and black families tend to be poorer. And that is because of a load of historic laws which were overtly racist - laws which stopped black families from buying properties in certain areas and stopped them getting mortgages in areas where they were allowed to buy property. And I don't think that's an easy problem to fix, wealth is passed down generations in families so those historic laws are going to have a long-lasting effect.
So yeah, black people will get profiled just like when people hear about a terrorist attack they tend to instinctively blame Islamic extremism - these stereotypes/prejudices aren't baseless, they're based on statistics. And in the video you posted, it may have been frustrating for the black dude to have been approached by the police when he wasn't doing anything wrong but all he had to do was identify himself and I suspect that would have been the end of the matter.
It's also worth noting here that these incidents are, statistically speaking, rare. The stupid bint who called the police on a black man in Central Park on spurious grounds was fired from her job, hopefully things like that will make people think twice before crying wolf.
We need to dispel this myth that black people are being routinely hunted down and killed by a systematically racist police in the US. That just isn't happening. Tom has provided some stats, a vanishingly small number of black people who were unarmed were killed by police last year. More unarmed white people were actually although per capita in terms of the population split between white and black people it did happen to more black people - I have suggested above why they might get profiled and be more likely to be affected though.
The idea that black people should be scared of encounters with the police lest they're gunned down in cold blood is just not borne out by the statistics.
There are occasional incidents and the George Floyd one was a bad one, but the police who did it are in jail so I don't understand what all the signs saying "no justice, no peace" mean. If the people who did it are acquitted then there will be a shitstorm, rightly so. Till then, I don't understand what these protests are intended to change. As you say, the laws to ensure equality already exist, what those policemen did is already illegal. People who do harbour racist views aren't exactly going to change that because of some protests.
Obviously I can't know what it's like being black in the UK. I don't see black people being chased down the street or have racist abuse shouted at them. Quite happy to believe it happens but is it common? I'd say most of the racism in the UK is more subtle - there's good evidence that people with "English sounding" surnames get more response to their CVs, for example. That's not all about race though, plenty of white people have foreign sounding surnames and would be affected by that. And that's an easy fix - anonymise CVs. I do think (and I realise, as a white person I'm on thin ice here) that some black people just look for racism everywhere they look and confirmation bias does the rest. Every perceived slight is deemed racist.
We are currently having ridiculous conversations at work about quota of BAME people at senior leadership level. I seriously don't understand how that is supposed to work, so if a black person leaves and that means we're now not meeting the quota then what, does that mean we have to hire another black person? There is no such thing as positive discrimination, it's an oxymoron. The solution to discrimination is equality, not more discrimination.
TL;DR - I'm not saying that racism isn't a thing now, but I'm not buying into the idea that black people are systematically oppressed these days. Profiled, maybe, but not entirely without basis. And subject to more subtle forms of racism, sure. But aren't we all affected by some forms of bias whether conscious or unconscious? As I said at the start of this ramble, we prejudge people based on all kinds of things about them, many of which they can't change.