Disclaimer: I am not a CPA/etc.
Is the gross profit of the company negative? I think you are confusing operating profit and gross profit.
Not sure. I believe it depends on whether holding company holds something that produces passive income. But you'd need someone more knowledgeable to say for sure.
(You may know the following, so skip if so)
The idea behind PFIC is to make it more difficult for US investors to get into non-US listed investment companies (funds) and escape taxation through investments that are not taxed in the foreign country. Otherwise, you could buy into a mutual fund in SomeCountry where cap gains are not taxed at corporate level, the fund invests in stocks, buys/sells, but you never pay short term taxes - you only pay when you sell out of the mutual fund after twenty years.
It's not that you are prohibited from owning PFIC. It only hurts you in tax reporting time. If you are small investor, I suggest not owning potential PFICs or owning them in tax sheltered accounts where you and IRS don't care. If you are not small investor, hire someone to do your taxes - just make sure they know about these things.
If you are small investor and you screw up with reporting, the likelihood of IRS auditing you is very low. I doubt many holders of GRVY, for example, reported according to PFIC. I doubt any were ever audited. :)
GRVY was the only PFIC that I owned I believe. Although I am sure there were other edge cases with cash-rich net-nets... I wonder how many Japanese net-net investors file taxes with PFIC accounting. :)