How can believers and atheists find common ground to be able to say.
You know, I see you as a human being, no matter if you believe in a religion or not.
I want to know you as a person, but if you believe or not, that is your private choice.
I can love you for just being you.
By recognizing that there is no in toto universal, absolute, objective common ground.
You and I don't share the exact same common ground.
We are both in the same world, but we can't make it the same down to that we become one, because if I claim we are exactly one for the common ground, then you can do two. But so can I.
There is more, but that is the standard one. Someone will claim: We can become one, if everybody else did as me. But that applies to everybody else too as another individual.
So for you and I as us two, where we disagree in practice, are when you do pacifism and I do the militant variant and thus we in effect do the common ground differently.