Based on them being involved in one battle in WW1 and being massively vulnerable to air attack in WW2.

It’s an exaggeration saying that they were outdated in WW1, as they basically acted as a deterrent, but it was at enormous expense and they don’t do much. Too big, too slow, too expensive. The argument was playing out even prior to WW1.

https://en.wikipedia.org/wiki/Battleship

Aircraft carriers took over, as you say.