Hello!
Sorry, but your message contains FUD and fantasy. The Swiss Federal law about the Surveillance of the Post and Telecommunications enforces 6 months of metadata and e-mail headers retention to ISPs with more than 100 M CHF of revenue per year for at least two years in a row or receiving more than 100 requests of information in a single year. All the exemptions and obligations here. Furthermore, your alleged retention obligation of encrypted transiting data in unencrypted form not only is not required, but it is also physically impossible when the ISPs don't have the decryption keys, i.e. always, for any practical purpose (impossible every time end-to-end encryption is used). In this case the law does not try to enforce something impossible, at least.
Kind regards