I agree:
1- We are all humans
2- In any group of people you would find "the good, the bad and the ugly" :D; all types of people.

I'm just probing the "moral/ethical basis" of non-believers, bearing in mind that they would usually talk about the "relativity of morals/ethics"
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"The larger grows the island of my knowledge, the
longer stretch the shores of my ignorance."