Furries are people that like to get dressed up as animals and find sexual gratification by having faux tails they stick up their ass, and ears they wear on a headband. It’s a fetish some are very much into with conventions and everything. Plushies however are attracted to actual stuffed animals, not people dressed up as such. They have actually gone so far as to create vaginas in the plush animals and fuck them.
I did talk once to a caller that said he was rubbing a teddy bear on his dick, which was kind of disturbing for a grown man to say, but to actually alter a toy so it has an orifice to fuck is a bit odd. One man I did an audio for had a thing about the Easter Bunny, he wanted a girl in such a costume with a hole cut in the costume for him to fuck her as she wore the outfit and spoke of her running her paws all over his body, it was beyond weird. Obviously it turned him on tremendously though.
Maybe ones into the fetish were lacking in kindness and attention from real people as children, so they got a bit too involved with their stuffed toy collection that provided them some comfort. Guys have dicks and seem to just want to stick them into things, girls don’t have this obstacle. Some girls will want to stick inappropriate things into their pussy, I’ve spoken to enough ER doctors that have confirmed weird things they had to remove, but guys more so.