Might be worth trying to put together a class action suit for all of the people that this keeps happening to... but again, the recovery would likely go primarily to the legal firm, though it might be enough to get Google to wake up and do something about their auto-rejecting appeals system.
I won a case against American Airlines doing that (a baggage related issue.)
I wish it were possible, but I don't know that a county court would consider itself to have jurisdiction in such a case.
If you live in an "insignificant" country it is possible Sony as no presence and so your win won't get you anything. However in the US or most of Europe Sony has enough presence that some part of them will have to pay.
The best explanation for this I could find is here: https://www.nolo.com/legal-encyclopedia/free-books/small-cla...
But, it doesn't really answer the question. The agreement between Facebook or YouTube and the uploader definitely requires suits be brought in the jurisdiction of the company (so, Delaware, probably, but maybe California). Sony is using Facebook or Google to do their dirty work in these cases...so, who can you sue and where? I don't think it's at all clear that Sony could be sued in a local small claims court for a matter like this, though I would like for them to be.
But first check the terms of service to make sure you didn't agree to mandatory arbitration and waive the right to class action.