The contrarian point is everything that can be moved to the cloud and browser has done so and the growth rate will only decline. Slow "GDP" type growth rate.
Most of things that are poised to take off in a dramatic way - like cloud and browser in 2005 - are heavy in local/edge computation with a fat pipe to the internet. Examples - Games, AI, ML, Robotics, IoT, sensors, drones, Industrial equipment etc.. All of these actually favor a language like C++.
Not everything in the world is a SaaS business connected to the cloud via a browser.