Likewise Google is obviously an online advertising tech monopoly, depending on your definition of "monopoly".
There might be legal or technical rationals for why these statements are not true. But practically speaking, they are obviously true and that's what should matter.
But that's beside the point.
Practically speaking, a person considers something "wet" if contacting it will make them wet. If a person contacts water, they will become wet. It's not about the technical definition of "wet" - it's about the practical implication of the word and the effect it has on people and things around it.
Just like how even if Google does not technically have a monopoly, their influence over the market is monopolistic in practice and has the same adverse effects as a monopoly.