Well, dissolving the Senate would just make that problem even worse if that's your viewpoint. "Twice now" seems to be a dig at Trump as though MAGA is the only populist movement, but ANTIFA/BLM and other, similar populist groups have taken hold of power in various forms as well, primarily in certain west coast states and cities.
Yes, if anything the issue is that the House was capped in seats in 1929 and the population has tripled. Smaller states have an outsized representation in Congress currently.
This might have made sense for the original 13 colonies but after westward expansion, it clearly does not. Most of the western state borders were formed for administrative reasons