Its been my experience that religious sources tend to be not the best source of unbiased information. Anyone who isn't a Christian is a pagan is a very broad brush. Pagans exist the same way any other religion does. Back in the old days, Christians could say it, but they were including a whole lot of people who weren't Pagans in with the real Pagans, who still exist today. I know people like to think that dominant usage is the way to go when in doubt about how to use words and what they mean, but I think we have arrived at a place, much pointed out by numerous Monty Python skits, that when looking at an apple cart filled with green, yellow, red, and pink apples, we have been trained to say that because they are all apples, they are all red.*** I don't think Pagans appreciate the idea that they are worshiping false gods when the supposed mono god people all insist their single god is the only single god there is because that allows for many single gods to exist at the same time as in back to several gods being worshiped at the same time and while fewer in number it still isn't just one.
***Heresy, Hypocrisy or Skillful Advertising: There are 12 different edible berries in the world that are blue. They are not all in the "blueberry" family, but many of them are sold or used as blueberries when in fact they are blue berries.