A linguist looks at an example like “literally” and says, isn’t language amazing? Words change and evolve, are created and die off, and yet everything works, people don’t stop being able to express ideas because the language got screwed up, everything takes care of itself. People were making the same complaints about words being used the wrong way 200 years ago, and a thousand years ago, thinking now we’ve lost a critical piece of the language, but it’s always fine. We have languages like French with an academy that regulates it, and we also have languages that have never been written nor taught in school. And they are all capable of expressing whatever they need to express.