Correct. Then yen trade has been well talked about for over 20 years at this point. It's blown multiple hedge funds attempting to bet against it. It's funny how the dumb money always thinks the trade is obvious AFTER it goes in a particular direction with increased volatility. Statistically that is never the case, however. No fiat currency has ever survived long term. They always print more. The yen will die. Someday. But traded against what other asset? You can't actually short the yen directly. You have to also go long something else.
Thousands of trades per year as a full time income. Maybe it comes down to semantics but your yen "short" can make you more dollars, yet the value of the dollar can decrease faster than you are earning them on your yen "short". If you short the yen you must short it against some other asset, such as dollars. You end up being tied to a long position in that other asset while you are in your yen "short". So which yen short did you have in mind, exactly?
So this is your response when I ask which of the many yen short securities you would select? Bullies always attack the person when the facts confuse them. Always.