The bad actors could be brought to trial in a United States court, which is a level of deterrent not included in offshore manufacturing. If a US manufacturer was found selling tampered chips then the company itself could be held liable. This would create a general pressure to increase onsight security.
There are other benefits to us based manufacturing, but you only brought up the crime aspect so I will leave the other benefits unsaid.
There are several easy to reach pages without categories.
Almost anyone alive during WW2 will have a WW2 link. Almost every country is 1 degree from Hitler. Most companies/publications around than will link to Hitler.
AMD server CPUs currently outperform Intel on some multi-threaded benchmarks. This usually isn't a problem for people buying for peak-performance because you can always buy more CPUs to increase parallel programming speeds, but it's harder to make single threads faster.
It's possible that the patches applied to fix this bug will cause some single-threaded benchmarks to change from Intel being the fastest to AMD being the fastest.
There are other benefits to us based manufacturing, but you only brought up the crime aspect so I will leave the other benefits unsaid.