I agree 100%, Laura. Calling it fashionable for middle class people to inhabit inadequate spaces (because the earth!) is like calling it trendy for poor families to diet together (because their health!)--a cynical bit of misdirection to protect an unfair system.
I like having room to stretch out, space for all my books, my power tools and other hobby stuff, space to entertain my family and friends (someday). A tiny house wouldn't make me happy, unless the alternative was no home at all.