I know it is possible to build solid houses out of wood. The ones I'm talking about would 100% not withstand blizzards or tornadoes.

Like most in my native country, I grew up in a building made entirely of solid reinforced concrete slabs, including most interior walls. I could not hear my upstairs or downstairs neighbors and when I saw people punching holes in the walls in American movies I thought it's just an exaggeration, not something that can actually happen. Wooden houses were culturally associated with poor rural people who couldn't afford living in a nice solid apartment. That culture persists today, and even in isolated villages new homes are built with concrete structures and brick walls.

When I bought a piece of land and was looking at options for new houses, I found a company making very solid wooden homes (still a lot more solid than the average Bay Area home) for reasonable prices and both my and my wife's families were outraged at the idea of building a house out of wood.

Just some random background to why I'd use the word "flimsy" for wooden struts sandwiched between drywall sheets.