into the general.

As for ignoring it, sometimes, though not always, that is the wisest choice when the goal of the person making the comment is to arouse outrage and anger.

If Sanders himself had said it, that would be different. It would deserve a response then.

Trump is a good example. He plays to the attention and divisiveness of arousing outrage. The media plays into that too, by amplifying his comments. Better to calmly disagree and then use our energy for concrete action instead of burning it up in outraged anger.