I can only speak on my own experiences, but when I first came out as a fur and little in 2009, I received a ton of hate in general (mostly on furafinity, which is a cesspool itself). I've always had to defend myself to other furs. It's only when I became staff at a convention that people had to chill out when they saw a staff member walking around with SFW babyfur badges.
My experience has always been that furs hate on littles, but at the same time are all for BDSM, pup play and other kinks.