Treating virtual goods as personal property would not address the problems of diminution or elimination of the value of virtual goods due to (i) alteration of the difficulty of acquisition through modifications in the game play or duplication of virtual items by game operators; (ii) modification or deletion of virtual items by game operators; (iii) illegitimate duplication of virtual items by means of third party exploitations of errors or weaknesses in the games’ source code; (iv) the third party use of computer programs that automatically play online games to acquire virtual items; (v) game operators suspending or terminating user accounts as a result of violations of the terms of service (such as abusive or obscene communications); and (vi) game operators shutting down or otherwise ceasing to support games due to declining player participation and/or revenues, insolvency or sale of the operators, or any other reason.
You signed and agreed on PWI ToS, thus they are real owners of all your property and no lawyer is going to save you.
But then again France might be retarded, after all they have you.