Go start a company. Hire people without doing any sort of coding interviews. Report back in a year.
The reality is that these are extremely desirable positions with a staggering number of applicants who _do not know how to code_. Not as in “I can’t solve a dynamic programming problem without studying up on it”, but as in literally don’t know what a for loop is.
The process is far from perfect and the frustration is understandable, but it works well enough as a filter from these companies’ point of view.