Cultural Backlash Meaning

I'll try a rough take - I think what is being referred to is the manner in which something is regarded or held. For this example, lets call it "the US Financial system" / "Wall Street". I can't really tell you first hand, but my impression is that for a long time (that is, up until the Financial Crisis / Great Recession), the companies and people working at those companies (ie "bankers") had a relatively well regarded, both by the majority of the US population, as well as by the majority of US media.

Now after the Financial Crisis, I think this changed to quite a considerable degree - as Wall Street was seen as responsible for the significant loss of income or property to a large section of the US population. This changed the view taken of "bankers", the bonuses they receive, etc. That I think, is the "cultural pushback".

---

Probably another good example to illustrate what's meant is what people have referred to as the cultural backlash (predominately by people not of colour, ie of caucasian ancestry) after Barack Obama was elected - to put it briefly, in the form of eg the view of "Political Correctness" as going too far, etc. (whereas this was more widely accepted before his election).

Again, this is absolutely not first hand knowledge, I'm just pointing out what I've seen written in newspapers and the like.