The best way to meet Boswell's argument is to grant for a moment that the O.T. prohibitions reflect idolatrous worship practices, that homosexual acts are wrong because they are used liturgically in false worship of false gods and goddesses. (faith.org.uk)
In addition, even if a life without worship of false god (s) is more difficult, e.g. persecution, it is not wasted on false beleif (religion.blogs.cnn.com)
The polemic of the prophets against worship of false gods in Israel was combined with the struggle against political and social wrongs. (religion-online.org)