Why did Tolkien dislike Disney?

[Lalwendë]

Originally Posted by jallanite

As far as I can find almost all animated shorts in the early days of film animation were produced in the U.S., and none at all in Britain. So this would have created a demand in Britain for books based on the animated films seen, which Collins was able to fulfill thanks to Whitman. I do not know whether the Mickey Mouse daily strip was published in any British newspaper.

I think it's most likely that Tolkien had seen Disney at the cinema. I don't know that any Disney books really took off here. I'm a bit fond of rooting through old children's books in second hand bookshops and I confess I've never seen any Disney ones older than ones from about the 50s or 60s. I also think that if Tolkien didn't like the art style then he's not that likely to have picked up the books for his children unless they pestered him - and apart from Priscilla (possibly) were probably too old to do that by this time?

What is the exact date of his first comment about Disney?