That again is a poor statement, since you have no idea if insecurity is the case or people who just do not like the design period male or female.
Granted not a lot of folks have posted various examples of artwork / knowledge to back things up, but thats usually expected on a forum with a userbase as large as GAF.
Unless there are some very obvious cues, such as a person using slang that would be considered homophobic "which in the case they usually get banned for" its difficult to place the blame on said person making the comment in fueled by "male insecurity".
This is more of an example of people disagreeing with something due to the design not being aesthetically pleasing to themselves more than anything.
Since there is a Simpson's pic for everything Id have to say the following below best represents what folks are seeing with the design.