Hey, I just wanted to reach out and say that many people who are living with Dissociative Identity Disorder can entirely understand and appreciate where you're coming from.
The fact is that there is too much misinformation about fictional introjects online. People will discover the term and find it interesting and exciting. They will disregard the fact that these alters form from severe trauma and will envy the experience of those living with DID because they want to meet their favourite fictional characters, or they want to have a support system that feels like it's magically there for them. It's very common in younger people, especially with the speed at which this kind of misinformation can spread on platforms such as tiktok.
Your scepticism on the existence of introjects is entirely valid. Much of what you described is indeed not reflective of the DID experience and is rather reflective of the internet culture that has fetishised it. Many people with DID, and many fictional introjects elect to not be open about the disorder online because of the very things you mentioned here. These things have also made treatment and mental health support much harder for those with the disorder to access.
I'm sure I'm not alone in saying that the things I've seen online have made me feel deeply ashamed of having DID, and particularly having fictional introjects. I'm truly sorry that you've had to experience situations in which people claiming to be introjects have treated you poorly.
Please be assured that the actions of young, misguided people online is not representative of the DID community as a whole, and it is certainly not representative of living with or as an introject. We're tired of it too.
My biggest recommendation for you is to steer clear of spaces that claim to be geared towards DID, but allow or encourage the above described behaviour. I hope you find yourself in a kinder community soon.
Keep safe - Frank