Your example is not analogous. It is more accurate to say you are an ice cream seller and the only ice cream seller. Their is a thriving market of sellers for d

Your example is not analogous. It is more accurate to say you are an ice cream seller and the only ice cream seller. Their is a thriving market of sellers for donuts and you wish to sell donuts so you give away free donuts with all the ice cream you sale. Not because this is your value proposition, but because you wish to make the donut business untenable for anyone other than the largest ice cream seller. That is antithetical to competition. There should be limits or a prohibition on subsidizing horizontal or vertical business integrations. The limits should be related to the long term consumer value proposition.