Am I understanding this correctly? You've been a Model S owner for 6 years and have not participated on this site in all that time, then your first post is to suggest starting a class action lawsuit against Tesla because they won't fix something for free that happened after your car was out of warranty?
You did say you would appreciate help on how to deal with SC without having to escalate to a lawsuit. Instead of dealing with the SC, have you tried the executive escalation option under Support after logging into your account? (I realize many owners have reported not getting a followup response, but maybe you at least try to exhaust that option before invoking the lawyers.) Just a suggestion.
I respect your feedback. 1. I really did not know about this site until I started to research the issue. 2. Not only I have tried the executive option. I also send them a formal notice to which they responded with a boilerplate letter. 3. A class action may be an option, but for me, I am not willing to accept BS answer from the manufacturer to what is clearly a product defect issue. So I vote with my wallet and started the process to bring a personal lawsuit first. Hopefully, it will benefit others.