I like WD and use but I don't think all commercial products are bad, eg Avast, Kaspersky, Norton, Emsisoft, ESET, F-Secure all sound like they provide a good level of protection. AVG was one of the first to adopt AMSI, I had used it more than 10 years ago and it wasn't terrible at all.
If I told you there are still products today that do not implement AMSI and ELAM properly, would you be surprised?