Two views on theism:

[edhopper]

30. Russell's dismantling of believers ideology

is so penetrating and clear.

His take down of Lewis, who tried so hard to be intellectual about his unsupported beliefs is a wonder.

"Why I am not a Christian" is a must read.

I think the main difference between the two is Russell was a philosopher and the ideology of theists was a part of his discipline.

Einstein was a physicist, his area of inquiry was the understanding of the physical world. Not involving any God or supernatural entities. He chose not to be confrontational about his atheism. Which is also understandable.

I think you are completely mis-characterizing the two men's beliefs. Putting Russell as a hate filled atheist and Einstein as a agnostic defender of belief.

I think you would find their lack of belief very similar and only the discourse they engaged in different.
Which is understandable given their different disciplines.
They were not in two different "camps" as you are trying create here.