More men show up if you google the singular: https://www.google.com/search?client=firefox-b-1-d&q=kooky+politician

There, the first names to appear are male: Kevin McCarthy, Kucinich again, George Santos, etc.

When men and women are called the same name and the name is not historically gendered, the name is not gendered. Nether cuckoo birds nor cuckoo clocks are seen as primarily female.