Is metal dead?

Any kind of nonsense like rap and hip hop (not to mention pop music) fills the TV and radio, for example, which means there are more opportunities to hear it and become interested in it, and consequently, fewer such opportunities for metal. We are not threatened by an invasion of these genres, but I am not sure about the next generation if they see all sorts of rappers on TV from childhood, etc.

Well, TV and radio are still taking a backseat, giving way to PCs and laptops. That is, the internet is next, and there you can download whatever you like.
And in general, what they see on TV depends on the channel, so it's all, in my opinion, a matter of taste, and it's not worth lumping everything together.

Now it's just a different era, a different trend. And that's why rap and hip hop are more popular because of their popularity; we shouldn't forget that everything is now adapted for the masses, and music is no exception.