You are WRONG. Once this backdoor is inserted into this iPhone, it is only a matter of time before cybercriminals and hackers get a hold of it. They will then have access to your health data, your banking data, where you go and live and much more.
It is not just for “one iPhone”. You fundamentally misunderstand data security. Perhaps your ignorance is willful. If the law passes it would also make it hard to sell these devices in other countries who don’t want the surveillance. That effects the economy and sets a precedent for other countries to force American tech companies to do the same.
How can you be this blind?