At some point you have to blame the other people who kept it going for 50 years now.
I think this is true, and is a big failing on the part of Democrats to seize an opportunity to do something that would have been generally popular. I think it's funny that the modern Democratic party bends over backwards to please corporate interests, when those corporations are far more interested in Republican politicians. The recent crop of anti-trust investigations has been encouraging, but smacks of a "too little, too late" change of course, especially when this article notes that there is a law on the books (and it is still on the books, despite over forty years of non-enforcement) that could have helped Democrats campaign on food prices, which were a huge concern for voters this year. It's probably Clinton's fault (Bill's, not Hillary's) for shifting the party further to the center to win in the 90s.
Oh believe me, I do. The democrats are absolutely complicit. But noting Reagan as an inflection point is also important because it humanizes the span of time. It was not "always like this". It happened because of one admin. It can be undone, we just don't care to, apparently.