I mean, we have at times considered rats to be part of a literal plague, or in certain contexts where there are vast numbers of them, they've been called a plague metaphorically. But rats in general are not a plague in the context of the whole world, so for a number of reasons this doesn't follow.
The inconveniences that our own population high count cause to ourselves includes things like global warming, which we all agree is a huge inconvenience, so even by your own definition we are a plague.
Oh you are that kind of discusser, a good faith attempt at discussing would have included a definition for plague in your comment, if the heavily implied one that it must be a "damaging" was not the right one (or just not answer at all if don't want to bother keeping the discussion)
"If you were arguing in good faith, you would have defined the term that I brought up and didn't define and which you didn't use, and regarding which I then falsely attributed a definition to you"