@Weightsandmeasures
You care less because his views did not impact on you. Your ignorance is not an excuse. Those who are on the receiving end of his views will care.
In fact you're wrong. Roald Dahl did express views that I could argue impacts on me in a negative way. He actually does this in one of his books. I don't let that put me them.
It was only after I thought about your comment that I remembered that specific view. In general I don't know about my favourite authors' views.
More importantly though, your last comment is a very presumptious remark to make of someone about whom you know nothing. In fact it's a presumptious remark to make towards anyone you do know unless you know that person's own background and history pretty well.
Writers say all sorts of things - unsurprisingly, as the fact of writing a book means that they will express all sorts of views in all sorts of ways. It is inevitable over time that as society's views change our views on the author will change, but this ought to be as expressed through their works. That's why society still reads - and celebrates - authors like Shakespeare, Chaucer, Milton, Dickens, Mark Twain, Austen and the Bronte sisters. Not only that, but we still celebrate their books, even if they also express views society now rejects, because they are rightly still recognised as great works of literature.
What you think should happen instead is that we should be made to take into account authors' personal views and remember them for that as well as their books. Well, there are plenty of societies that have taken that sort of approach, but none of them are ones that I or I suspect you would want to live in. That's the sort of society that burns books because the author is "wrong" and punishes people for reading and enjoying them. It's a view that also infantilizes people by believing they cannot cope with off-message views.
I am not going to let myself be put off books because the author may at some point in his or her life held repugnant views. I'm certaintly not going to be put off some author because I disagree with their views and I think anyone who does runs the risk of becoming close-minded.
Roald Dahl was the writer of a large number of extremely successful children's books. He ought to be celebrated for that reason.
He was also imperfect like the rest of us. So what.