I am a believer in being upset about the right things. "Expenditures" are not automatically "losses". There are things that may be upsetting about how businesses are taxed, but there mere fact that they are taxed differently than people, or that it subjectively feels unfair that they are, is not one of them. There are reasons for that variance in taxing. Many of them are quite good and ultimately play to the benefit of both the employees of that business (who like having a functioning business around to pay them) and society (who like not just the taxes that come from the business, but all taxable activity it generates, including paying people incomes and health insurance and such).

If most people feeling their way through this problem got their way, they'd simply destroy businesses entirely. They wouldn't necessarily mean to, and only a handful of people would actually appreciate that as a result, with even fewer of those would appreciate it after ten years of experiencing it, but it would be the result.

This is a thing that has happened, and can be studied in history, and is actually happening in the world right now; countries have destroyed their entire business base for good, feel-worthy reasons. Generally speaking, most people have not liked the results. It is not a thing that is beyond the pale, or impossible to happen, or can't happen here, so it's worth encouraging people to be more careful than just feeling.

(This is more opinion than the above, but I don't really believe in the existence of "businesses that aren't taxed", because the business is non-trivially responsible for all of the income tax their employees generate, and directly pay Social Security, health care taxes, sales tax on all the things they buy, and so on. It isn't really the case that there are companies that reach the end of their fiscal year and not a single dollar was "paid in taxes". All it is is that they aren't necessarily paying income taxes, one particular tax, in a field full of lots and lots of taxes. The idea that "companies aren't being taxed" is a lot of rhetoric, which isn't intrinsically a problem, but it can be very misleading and lead to emotions not well-calibrated with reality. By this standard, there's actually a lot of Americans who "don't pay taxes" too, which really makes it all seem a great deal less unfair, and even pay negative taxes, but they still pay various taxes even so, because income is only one taxation element.)