Is magic-stopping cult a good idea?

Hi, so, as the title suggests, I have an idea for a cult that wants to cleanse the entire plane of magic. In this world, using magic is a relatively new concept (around 40 years old), but it has always existed (so creatures dependent on magic were already present). Magic was brought into the world through a ritual, which also has an opposite version. You need some ingredients for that, but that’s another topic. I was just curious whether this is even a good idea or not. I will be more than happy for any advice.