(neologism) The practice of applying the qualities of a bad apple to an entire group in order to mischaracterise the group as a whole.

(US, symbolically) Patriotism and traditional US values. / (US politics) Something that cannot be questioned because it appeals to patriotism and widely-held American traditional values.

There is a bad person in any group.

Every community and demographic has troublesome members.

Alternative form of how do you like them apples

Apples are healthy and stave off illnesses. / Healthy eating prevents illness.

Synonym of the grass is always greener on the other side

Alternative form of an apple a day keeps the doctor away

(colloquial, rhetorical question) directed jestingly or mockingly at someone who has received surprising information, ridiculing the situation

Alternative form of the apple does not fall far from the tree