You're using some pretty broad stokes there. In grad school I too witness a lot of cheating, however I saw everyone do it. Chinese, Indian, Caucasian, African American, the only ethnic group I didn't see cheat were Hispanics and it's because the school I went to a 1-2% Hispanic student population and didn't see any of them cheated.
Do the things that you say happen, sure they do. Lot's of unfair things happen and yes we should be aware of them but assuming that a particular ethnic group all act a certain way, then you're right it is disturbing and dangerous.
+1
In both undergraduate and graduate programs, I can count on one hand the number of people I didn't personally see cheating. It was 99%, knew no cultural or ethnic borders. I was shocked and appalled.
As a graduate teaching assistant, I regularly caught students cheating, but the most blatant time was a group of all white kids turned in a report that matched, word for word, a report handed in the previous year by a group of asian kids.
I started asking around at the ombudsman office and interviewing professors who had been around awhile, and the story that came together generally was this:
1. In the beginning, college was without homework. At least, the homework didn't count. Do it, don't, no impact on grades. You get a Final Exam, and if you're lucky, also a midterm.
2. Some students found this to be a stressful arrangement, and so would kill themselves.
3. As student suicide is bad
[citation needed], homework grades were introduced as a way to recognize those efforts and mitigate the impact of a single bad day during a test.
4. But once you are grading homework (and ignorant of this evolution) you end up in a conflict. Enough homework needs to be assigned for mastery, and better safe than sorry, so too much gets assigned.
5. Now there's too much work to be done in the time allotted, and STEM folks are good at solving problems.
6. Rampant widespread cheating.
I don't know if the above story is exactly right, but I would say it is true that there is no possible way to legitimately complete all the assignments I was assigned in college. I was comfy taking the lower grades for incomplete assignment, because who cares if you get an A or a B in a class, it doesn't matter. But some folks felt like they needed that 4.0, so they felt like they had to cheat.
To get an idea of how widespread it is, at a top 10 engineering school, I can name all 3 people that didn't cheat on a regular basis, out of a graduating class of 900. Not once or twice, not in dire need, but as a regular part of their everyday. And it isn't like I was all detective TOYM trying to catch them, they were blatant about it and dismissive of the idea that it mattered.
When I told the prof I was TA'ing for about that report? He sort of shrugged and said "What're you doing to do? The group leader is the head of the honor's society and I can tell ya that every other group cheated too, just not as blatantly. I honestly just don't care anymore, and haven't for about 20 years. It's their education, if they want to rob themselves it really isn't my problem."
So yea. Cheating is widespread. Not a race thing.
When I see a job applicant from STEM with anything over a 3.5 GPA, I just mentally note that they are a cheater, unless I am totally wowed in the interview by their genius level intelligence.