anti-social means that a person does not conform with what authority says.
"authority" has an opinion on religion, good manners, social interaction, biodiversity, climate change, whales hunting, and every possible topic on earth.
People can choose to fight the authority at any level they want on any topic they want.
Two people can fight authority on different topics, both of them see each other as anti-social; but both of them are anti-authority.
"Choose your weapons, your enemy has been chosen long ago, even before you realized." -- anonymous