ebooks already dont have a great track record when it comes to preservation. (https://old.reddit.com/r/kindle/comments/18csl9d/all_books_g...) At least Amazon can't break into my house to steal the copy of 1984 I paid for, when somehow they're allowed to remote into my device and delete my purchases whenever they feel like it. Bitrot is real too. Paper books can last a pretty long time (https://en.wikipedia.org/wiki/St_Cuthbert_Gospel)
There are downsides to both formats, but with paper there's no company keeping track of the date/time I open the books on my selves, or how often I open them, or how long I spend on each page, or how long I take to read the whole thing. I also don't have to worry about the books on my shelves being remotely and silently censored or edited. I don't have to worry about ads being inserted into them and I can freely read them and sell/loan them to others long after they've been banned.