And I've met plenty who have tech jobs, working with them right now - so what's your point?
I was born abroad, a woman of mixed South Asian and Black (among other things) descent so I know a thing or two about what I'm talking about.
While I don't deny that racism and prejudice exists it's premature to deduce that it, alone is the reason for a specific person, or group of people, not being hired considering how technical technology roles, like the NHS has a higher than average number of people of non-white descent.
The thing with those roles though is - degrees are meaningless. Even UK degrees. Half of them are outdated rubbish, the other half too high level for the graduates to be of any use. My company hiring since the late noughties used to take on graduates from any discipline and train them up, as the 'degrees' were bollocks. Mathematics, History, all sorts.
Asides from the degree you don't know whether they have any relevant experience, whether said experience is in a field that it's easy to get a job in (FOTRAN anybody0? Despite the media hype tech has always been a boom bust field, it builds up to a bubble then explodes in a wave of layoffs m skills become outdated quickly, etc. Not a steady or reliable field of work in general. Sometimes I regret choosing it but what can I say? I hate being bored more than I hate keeping up with the trends. It's worse than fashion.
Btw have a Google. Computer Science graduates have a surprsingly high unemployment rate... that's why when @BlueYonder57 said that bloke did an MSc I knew he'd gone down the wrong path...
https://medium.com/entrepreneur-first/we-need-to-stop-putting-students-off-computer-science-893c26feccfd
Those who get jobs do the degree AND loads of personal projects on the side. It's really the latter rather than the former that gets you hired. It is an art.... you need to see many things, do many things, then the map of what's happening forms in your mind. Disjointed modules in algorithms, operating systems etc etc don't make any sense until you actually deploy your own stuff and with things like AWS free tier there is zero excuse for people to have no hands on experience before graduating.