Consider that your access to info is limited by the perceptions of your mind. In the observable universe, the ratio of info you can’t perceive versus what you can is astronomical. And, on top of that, perceptions are faulty and can be deceived.
A God (deity, alien) needs only to have sufficient power to manipulate reality for you enough that you’ll believe there is some higher power (good vs. evil, God vs. Satan, alien vs. alien) pulling the strings. Given your limited perception abilities as a human, this is easier to achieve than you might realize.
The enigma of such ‘forces’ that can be perceived as ‘Angels’ or ‘God’ helps to keep the carrot strung in front of you. The purpose of life becomes greater than the sum of the parts, as there is hope for something beyond our short mortal lives and the suffering we endure to improve life for our offspring.
The truth must be hidden from people because humans might not be able to handle the reality of those that have such influence over externalities. Imagine if Q is telling the truth about our contact with a higher intelligence. Maybe the Angels who have helped saved your life are known to the highest levels of intelligence. Maybe evil is a real thing in our universe, in our midst, even.
The nuclear family and traditional values might be an essential part of harmonizing with the forces of good, since, after all, procreation is the basis of life itself, and this governs the lifestyles of those that we introduce into our shared reality.