Destructionist

noun

1. One who believes in or advocates destruction, especially of existing social institutions.
2. One who favors or engages in destruction; a destructive.
3. In theology, one who believes in the final complete destruction or annihilation of the wicked; an annihilationist.
4. One who delights in destroying that which is valuable; one whose principles and influence tend to destroy existing institutions; a destructive.
5. One who believes in the final destruction or complete annihilation of the wicked; -- called also annihilationist.