Even if I am selling it at a loss, the government still wants to tax me for the item
That is incorrect, You only owe taxes if you had a profit. They want you to show you sold at a loss. If you did , you owe no tax.
It has always worked that way for a business. Second hand stores have always owed taxes on things they are reselling.
Nothing has changed except for enforcement of laws and rules that have existed for many years