They wish.
It amazes me how people eagerly accept a belief in E.T.s, but struggle and deny as outlandish the Christian concepts of Saviour and salvation.
The real "alien agenda" began in earnest in 1947 to cover various USAF ops, as well as continuing to create in the public consciousness a belief in an occultic "greater power" which would be anything BUT Christian.
GALATIANS 4:8-9 "Formerly, when you did not know God, you were in bondage to beings that by nature are no gods; but now that you have come to know God, or rather to be known by God, how can you turn back again to the weak and beggerly elemental spirits, whose slaves you want to be once more?"