Yes, homosexuality is the greatest possible crime. This is what the Bible teaches, and homosexuality must be illegalized.
Illegalizing homosexuality is certainly worth shutting down the government.
Illegalizing homosexuality is certainly worth any political fight that is waged, because God of the Holy Bible requires nations to illegalize homosexuality.
It is important for US citizens to force US government to illegalize gay marriage and homosexuality, because this is what Christ the King expects Christians in America to do!