> compells us to rewatch movies
Yeah, I always wonder why people have to always watch the latest (and not greatest), while 100 years of cinema have produced great wealth. IMO people have so much easy media to consume these days, it is almost impossible to convince them if they are not already fans.
Also, it is not just libraries that are deacquisitioning back catalogues. Majors streaming services have less and less of these old movies. It is mostly a financial decision (in both cases)
So, these are the dynamics in play IMO. I don't have any solutions for the public in general.
However, if you are already always "compelled to rewatch", there are "official" options like the criterion subscription [1]. Otherwise, You can always find it somewhere online.. (To try before you buy...)