Simple question: how much money will it make Meta (or Google) to help you recover your account? None? They don’t care.
Spam and scams are rampant on the platform and they don’t care, because their users don’t care. Even if you report a blatantly obvious scam or an incredibly obvious impersonation profile with an identical photo and name to one of your friends’ accounts, they’ll say “Thanks for reporting but we see no problem with this!”
And the funny part is the 2 together means you the person adding you could very well have created a new account because their old one was hacked.