Yes, we're just hitting the limits of current manufacturing not some fundamental limit like the availability of raw materials. Either demand will wane and the prices will go down, or manufacturing will scale up and prices will go down, eventually. That "eventually" does some work, but it's not remotely a case of "a point of no return".

In fact long term this might well make RAM cheaper than it otherwise would be, because we'll make more of it and get better at producing it than we would have without the demand spike. I.e. Wright's Law in action - which is usually pretty good at producing the long term direction of prices of products like this: https://en.wikipedia.org/wiki/Experience_curve_effect