I’m not an IP attorney, and I haven’t scrutinized the products, but there’s a decent chance that these “fake” products aren’t infringing on any patents, anyway. They may well be, but if they cared about such things, I’m sure they could avoid it pretty easily.
Woodpecker’s drill guide contains cool and thoughtful features like a tapered shaft for the depth stop. These are likely simple junk that skip the best features of the real version, and you can’t patent a spring wrapped around a drill guide shaft (I don’t think).
What they are doing is passing their product off as the original and outright stealing Woodpecker’s artwork, aesthetic, and writing. It’s more like copyright infringement and counterfeit goods, than patent infringement, so far as I can tell.
What happened to you sounds infuriating, but these drill guides feel more akin to a fake Rolex to me.