There are real complaints to make out there about GameStop, like their shitty corporate structure and unacceptable treatment of employees, that it frankly blows my mind to see people still complain about getting sold a gut five years ago.
A few things to keep in mind here, coming from a former GameStop employee: first, the employee is not responsible for the insurance existing. They're expected to offer them to every customer. These employees are people scraping by for minimum wage, and it's incredibly rude to laugh at them when you can just say no thanks.
Secondly, the insurance isn't designed for you. I would pitch it to every customer and quite often would receive the reply "no thanks, I'm an adult and take care of my games." I'd say cool or good on them and finish out the transaction. The customers who benefit from the insurance are people with kids (I've had chewed on Switch cartridges and ones that have gone through the wash) or pets that they don't control. There was also a frightening number of grody ass adults who simply didn't take care of their expensive stuff who could really use the $3 protection. I had people who were moving soon who decided to protect their $60 game just in case a box got fucked in the process. There are real use cases for GPGs; if you're not someone who finds them useful, just say no thanks.
As a customer, going into a GameStop as a woman was a crapshoot. Some were super cool and normal. Others, I'd get typical gatekeeping bullshit. Other times I'd get hit on. It's deeply uncomfortable and I'd immediately feel more comfortable if I see a woman behind the register or even just knew a woman worked there. My former store manager made a real effort to hire women and to hire people from different races/religions/background, even in a predominantly white area. That really affected the climate of the store in a positive way.
As an employee, it was real tough being a woman for many of the same reasons: customers gatekeeping or hitting on me. I know my shit about headsets and PCs and console troubleshooting, so my co-workers would usually bump those questions my way. I'd constantly get them looking to my male coworkers even after, or saying shit like "you probably can't help me, I'll ask this guy." If a customer was clearly trying to get too familiar, I'd make a real effort to mention that I have a boyfriend. It was gross, but worth it for when we had young girls (or any women) come in and get to talk to someone they felt comfortable with and, in the case of the young girls, see that it was OK to play and like games.