Have you met your God in person? Have you sat down with him/her/it?
I have not but since this type of experience is common across cultures, I am led to believe that others HAVE had this experience.
Carl Becker examined four ways in which NDEs may be considered objective:
1. Paranormal knowledge that is later verified
2. The similarity of deathbed events in different cultures
3. Differences between religious expectations and visionary experiences
4. Third-party observations of visionary figures, indicating that they were not merely subjective hallucinations.
http://www.near-death.com/science/evidence.html#a7I am sure you have faith in your God, but that is not proof, because faith is a personal choice. Faith does not equal proof.
You have faith/belief in humanism, but the data remains largely unexplained by such hypothesis.
Also, your conclusion is based on your own assumptions. You have assumed that because man is that guarantor, it lays the basis of conflict with humanism. I disagree and believe that man believing himself to be the guarantor, highlights evidence of humanism and negates any further need for god.
Man appears to be the highest rational earth-being but he exists only on the basis of life force and consciousness, and consciousness is connected with one unity (per Godel and Chopra).
http://kevincarmody.com/math/goedel.html