Limited access to translations

I’m shocked that at this day and age there are a lot of books that still aren’t translated into English from the late 1900s?? At this stage with the internet and everything you’d think you’d have translations and access to different books but here I am struggling to even find them online sometimes and let’s say I do find them in a bookstore in some foreign country they are usually out of print, this honestly saddens me because they are literal gold that goes unnoticed does anyone know why? I feel like the idea that we have advanced so much and still have this as an issue feels very weird to me…