I guess that you would also find it equally vexing if Daisy comes with a newspaper and newspaper valuation of $3 and "damages" Bob by trading with Alice.

Also note that if Bob has two newspapers he just sells to both Alice and Charlie. Is it now Charlie that complains about 3$ of damages or Alice that doesn't get the newspaper because Charlie sets a price over 7$ while there would have been enough newspapers to go around? (I guess Bob could also complain if he only gets 2*$7 while the average valuation would have been higher).

Suspecting that there is a "trade is good" or "trade is fair" assumption for certain sense of "good" and "fair" that just doesn't hold. Most likely you are treating market value as property. The value is not in the object to be traded but also in the needs of the peoples using it.