This thread is now confusing two issues.
For the OP, firstly it appears that his car has been accidentally downgraded from SR+ to SR. This is surely a simple fix and it is not clear why the service centre has not had this actioned.
Secondly it appears that he is seeing unusually high degradation. This is concerning, however, it could possibly be to do with the accidental downgrade rather than a battery issue.
I don't know the Florida lemon laws, but if the service centre continually fails to fix the accidental downgrade then they may well apply. It would seem stupid of Tesla to allow a simple mistake to escalate to this level.
The high battery degradation is a more difficult issue. I believe that Tesla's battery warranty does not cover the speed of degradation and only kicks in when you hit 70% of rated capacity, which most people would probably consider unacceptably low. If Tesla does not provide what they would consider "goodwill" fixes above this level then it could be that legal action is the only remedy.
The second issue is people worried about first year degradation and the nonsense answer they are getting from service centres that it is due to their driving etc. The batteries degrade faster in the first year/10,000 miles than they do after this. This is well known and this should be the answer that people get from the service centre, this kind of thing has become endemic when dealing with large companies where you are fobbed off with lies and obfuscation rather than straight forward answers when you have an issue. Degradation of 3-4% in the first year would not likely be something to worry about, although it is highish and worth monitoring, and it should slow down after that (The OP does appear to be at the point where I would be getting worried and there may be an issue).
I cannot find good data on Model 3 degradation but have attached data on Model S degradation from this source
Tesla Model S battery degradation data