Journalist : a person who writes for newspapers, magazines, or news websites or prepares news to be broadcast.

Hasn't done any of this since the 90s.

So I'll go with his Wikipedia description:

British writer who promotes pseudoscientific theories involving ancient civilizations and lost lands.

I feel the most important part of that is the word pseudoscientific

He hasn't been published in anything significant since the 90s.

Why bring it up? What relevance does this have to him being a pseudo scientist?

In what way is this man a journalist? He seems like a hack that got lucky.

Idk if it was that hard. Humans can swim and float.