Looking at the web page is kinda ironic. A yacht builder proclaiming how much better the materials are for the environment. We could just build less yachts, for example. Nobody needs a yacht.
There has to be an interesting commentary here regarding the necessity of productive endeavours that pay taxes and fund local governments and drive investors portfolios into the black, all funded by useless largesse.
So technically, a yacht is any leisure vessel. ie not a working boat. In the UK, a yacht is usually a sailing boat though we also increasingly have motor yachts. In the USA though, a yacht is a large motor powered vessel. So, when an American says 'nobody needs a yacht' they generally mean one of those, rather than a sailboat. Not sure what context CrimsonCape was using.
https://www.windelo-catamaran.com/en/recycled-and-biosourced...