It is if you have surplus food and you're not sharing. It's also cruel, discompassionate, and inhumane.

Same as when you have excess shelter and you're not sharing with those who have no shelter, and in fact relying on violence/force to keep them OUT of your unused shelter because you're waiting for someone with money to come along and provide you with a profit. Along 5th avenue in Manhattan there are many luxury apartments and condos that are empty all year. They are owned by wealthy europeans who use them as a way of hiding their wealth from local governments for tax purposes. They have some niece or nephew stay there a few days a year when passing through New York. Meanwhile the number of homeless grows each year...

Such is the waste of capitalism.

That's a strawman argument and not at all what happens in modern (or historical) capitalism. This is the reality you are ignoring. 55% of food produced worldwide is wasted for the sake of maximizing profit.