(adjective) Causing destruction; damaging.
"Whenever any form of government becomes destructive of these ends [life, liberty, and the pursuit of happiness] it is the right of the people to alter or abolish it, and to institute new government."
"What you don't do can be a destructive force."
"Every man must decide whether he will walk in the light of creative altruism or in the darkness of destructive selfishness."
"Order without liberty and liberty without order are equally destructive."