It's not good that Intel also is depending on Taiwan based company. The US presidential elections in November, and anything can happen. The Chinese "reunification" is still on the table. Why no company in part of the world outside China (or Taiwan) can make that kind of chip?
It is due to nobody being able to, or willing to, make that level of investment. Intel did for decades, but eventually it became too much for them when they were the only customer for their fabs.
The US government is investing billions to help get Intel back to that level and to get TSMC to "offshore" from Taiwan to the US for product going to US OEMs (like Apple).