Jack Herer's book 'The Emperor Wears No Clothes' highlights this and is the source for a lot of the pro-hemp sentiment. It is also available online, here is a link to the chapter that highlights the paper industry lobbying to make hemp illegal - https://jackherer.com/emperor-3/chapter-4/
Wow... That is pretty convincing and damning...
I second this book. Every single page is enlightening. It's a pity that some people relegate this to a "conspiracy" when the concerted effort to make cannabis illegal in the early 20th century was very open and well-documented.
It's a popular story in conspiracy circles. That various industries tried to ban hemp tp favor their own materials as a more performant substitute.
If the substitutes were more performant at acceptable costs then one might think they would have been adopted naturally.