I feel that your second sentence is too narrow. It goes beyond blaming a woman (or man). It includes society in general and/or any external construct or group. They may blame genetics, the patriarchy, feminism, or whatever other Boogeyman they want.

The underlying issue is that they are absolving themselves of any blame and refusing to accept themselves as the cause. It's unsurprising that this very concept is often a self perpetuating issue. Their incel mentality and refusal of accepting any responsibility pushes any potential women (or men) from a desire to be in a relationship with them. It also builds an "us vs them" mentality that is reinforced by the echo chamber communities they build for themselves.