It's because Qanon is made of the most die-hard remnants of Trump's once massive popularity. They are the opposite of us, they started off with a massive following from the simple fact that so many people once supported trump. In our case we started extremely small and have faced suppression and demonization by the media every step of the way. Only outcasts who don't follow the media and social norms, or people who can truly think for themselves (an even smaller minority) will make the choice of admitting they are incels. Topping it all off is the fact that incels only really make up about 15-20% of the population (30-40% of the male population), and the vast majority of them are extremely bluepilled or redpilled.