a physicist responds: physics has done very little for like 70 years[0]
In what respect? Did you bother to actually watch the video or read a transcript or did you just watch the first minute and a half and assume that was the point? It wasn't. the ensuing thirty-two minutes serve to debunk the idea that there hasn't been progress in physics over the past seventy years.
Which GP claimed was the case. GP is wrong.
And she covers a wide array of physics areas -- she even mentions that she could have gone year by year starting in 1953 and cover at least one advancement per year, but she limited it to just her top ten which was pretty wide ranging.
And literally nothing in subatomic physics. The theories from 1960-s made predictions that were later confirmed: Higgs boson, neutrino oscillations, etc.
We mostly question the fundamental subatomic particle physics that is not producing any returns on the investment. E.g. the galvanic effect was discovered in 1780, and there were long-distance telegraph lines by 1845 - so 65 years.
The last major theoretical advance in particle physics was around 1965 (Higgs mechanism). That's already 60 years ago.