If there is a God then what we believe -- or not -- about Him, Her or It, is neither here nor there. Even less relevant is our sincerity. The same goes for science. All science is, is the naming and describing of what is there.
But I still say that there is no technical proof that God exists, nor any proof that he doesn't exist. As we know from various religious people: just because you feel passionately about something, it doesn't mean you're right.