Normally you would think that someone who would bomb public property would be priority number one. It was treated like spraypaint vandalism rather than something that could potentially hurt people. If it happened in a regular suburban park, they would be searching relentlessly for days on end IMO.
My opinion is that it was 100% an inside job. When they were blown up, the state government wasted no time demolishing what was left and did barely any investigation before doing so. Usually crime scene investigations take a while before proceeding to clean up. Afterwards the GBI slow-walked the investigation to some extent, at least.
If no one in the government had any connection to the bombing, they certainly pounced on the opportunity to cover the tracks. Lots of conservatives thought that those guidestones were literal evil. Not a rational motive but it’s certainly a motive.
I’m usually quite skeptical when it comes to conspiracy theories in general but I have a strong notion on this one.
I’ve never heard or seen any colleges’ Computer Science/IT departments that have more women than men. Just my personal experience in the US, maybe it’s different in other countries.