You’re partially right, but it would be better if users were evenly spread on many instances.
Imagine if one instance becomes so big and then they de-federate. For normal users, nothing would change, but then we would have created the new R*ddit
Send an email to your local council. Attach photos, explain what could solve your horrible situation. Nothing will probably happen, but if many people start asking those things officially, in the long run it may help.