There are valid concerns with the "dumbing down" of our entertainment, but as with so many issues, there are just as many invalid ones. This is especially true when "inclusiveness" and "dumbing down" are seen as the same thing.
Making games more accessible while providing experienced players with experiences they're used to isn't bad. Providing a variety of modes for less skilled gamers, or optional player help, is a good idea. If you have a problem with that, you're kind of an asshole.