The moral views of the average person circa 1930 are very different from one today.

But I read old books for their interesting stories, viewpoints on life, literary quality, etc. – not to tut-tut someone for having different moral views than me, a hundred years later.

So it doesn't bother me. Like I said, I really cannot understand the mindset of someone that reads a book from another era/civilization and focuses on critiquing the author's ethics. Just feels like such a limited way to interact with the world.