That's simply not true. You know better than thousands of developers who are using React or Vue in their projects, and they are just making their life harder?
I don't know what the "correct" answer is (and highly doubt there is a one size fits all answer). But there are thousands of developers not using them as well, so this argument is not valid.
So let's look at the data:
According to stateofjs survey: 100% of JS developers know what React is, 80% are using it, 88% are satisfied. There is no "one size fits all" but saying that
> they make developing even harder
is saying
> These people are stupid and make their jobs more difficult
I'm not saying that majority is always right, but I think these devs might be onto something. I'm also trying to show how idiotic is the logic of tonis2 who throws such a slogan around without giving a single argument WHY these frameworks make development more difficult.