[France] Gov mandates declaring Cold Wallets >€5k. Need privacy strategy

The French parliament just voted on an amendment forcing us to declare self-custody wallets (Ledger/Trezor) to the tax authorities if they hold more than €5,000. This effectively builds a massive centralized honeypot linking real identities to home addresses and exact holdings, which is a massive security risk and a wrench attack nightmare.

​I'm urgently looking for technical strategies to protect my privacy here. I need to know if "structuring" by splitting the stack into multiple sub-€5k wallets is a viable way to bypass the threshold, or if I should be looking into CoinJoin/Whirlpool to sever the link from my KYC exchange history before moving to fresh storage. I'm also trying to understand how they could possibly enforce this without me voluntarily doxxing my XPUB, so I'm curious if non-compliance is the general consensus. Any advice on keeping my stack off this registry would be appreciated.