Is it normal I don't like people who complain about the friendzone?

I didn't thumb down your comment because I thought that you gave some valid points, and I didn't remove your comment because that would be censorship. However, I'd like to point out that this post was saying that I dislike how many guys use the friendzone as an excuse not to learn from their mistakes. A lot of douchebags that I've met consider themselves to be "nice guys." Whenever they (rightly) get rejected by a girl, instead of learning from their mistakes and becoming a better person for it, they use the same argument that you do- they blame the girl, who never had any romantic feelings for them anyway, and stay the same as they were before. And since they haven't learned to become better, they keep getting rejected, and keep refusing to change. This post did not talk about actual good guys, it talked about douchebags who consider themselves nice guys, even though they're not. After all, how can a man tell if he's really "nice" by a woman's standards? I'm fine with the concept of the friendzone, but I'm tired of it being used as an excuse.