So, honest question: would you still encourage young Blacks to do IT/tech as a general STEM push still or tell them to hyper specialize to improve their marketability?
Tech will always be around as long as we use electronics, computers, research is being done, etc. The absolute best way to get into tech will be to get a STEM degree. Pick which one interests you the most.
Some engineering fields (Electrical, Mechanical, Civil, etc.) you can't get work without an ABET-accredited degree so that should be a consideration if one of those hit an interest.
Specialization will usually come into play if you have a Master's. However, you can't get a Master's without a Bachelor's and if you want to do research you'll need a PhD (see not ate end). For example, if you want to go into the current field of A.I right now you're going to want at least a MS in CS or Math, even then most companies won't hire less than a PhD to do their real A.I stuff.
In terms of what will pay the most? That depends on the market and nobody knows what will blow up next or a few years from now. Value isn't determined by difficulty of field either so it's not as easy as saying go to the tougher degrees (like Pure Math and Theoretical Physics).
Like I mentioned, we can make a good assumption computers will be around in the future. However, we don't necessarily know specifics. There was a lot of work for electrical engineers doing gadgets like GPS, Calculators, Cameras, etc. back in the early 2000's and was a gold rush for it until Smart Phones came out and basically condensed all of those hardware gadgets into software apps. A lot of those companies basically lost business when that happened. Now EE work still matters and it's a versatile degree that applies to so much more, but if you want to work on hardware stuff like that it's basically firmware/chips for phones.
I think in general the best play is to go general like one of the main Engineering fields or Computer Science to cover the most basis/give you a chance the get some kind of desk job then specialize in the industry into something for a better niche/expertise.
Side note: my cousin actually went to school to get an MS (maybe PhD) for Astrophysics and told me his job all day is basically staring at data and writing data-parsing code (actually hired software people to write the code because apparently their codebases were really bad and unscalable). At the end of the day they're just receiving back signals with a bunch of data and parsing through that data with algorithms then making sense of it. Really boring shyt which is funny because it's glamorized as something else entirely (they ain't out there taking pictures of the night sky out in nature). It really goes to show that software/data parsing is basically in everything and will be for the forseeable future (but again, who knows what happens with A.I).