And yes, you can build pretty tall structures out of CLT, but there's still smaller than what you can build with steel and concrete. The tallest one built that I know of is 25 stories. But at least 6 or so of those floors are all concrete+steel, and it still uses concrete+steel emergency stairwells.

https://www.fs.usda.gov/inside-fs/delivering-mission/apply/w...

But what is the foundation made from? What do you think the elevator shafts are made from? Its not like its 100% wood. I would like to see more CLT construction, and modern building codes are allowing taller and larger stick construction as well, but arguing that steel and concrete aren't necessary is ignoring all the rest of the things supporting that structure along with all the other things that still need steel and concrete. How did all the building materials arrive at the site? What harvested the wood? What were the machines making the CLT made out of? What are the fireproof stairwells usually made out of? Steel and concrete.

We'll probably see more and more construction which looks like this, where some CLT offsets some concrete and steel, but chances are the whole building isn't entirely wood:

https://www.fs.usda.gov/sites/default/files/styles/fs_wysiwy...

Using modern materials and building codes can let us reduce our usage of things like steel and concrete for more buildings, but its not going to fully eliminate their usage in our world.