No wonder with these incidents happening.

This is awful. Similar to the deportation of Jews in the 1940’s in the Third Reich.

Try cobalt.tools. It does what you want to do inside a browser tab (although I only used it on desktop so far), but it might work with an IPhone as well. You can convert YouTube links into either mp3, ogg, wave and opus files (with various bitrates), or mp4 or webm video files (with various resulutions). I use it constantly.