I suspect that's the minority view. For most people (myself included), mirrorless (Fujifilm X-series) gives us most of capabilities of a DSLR in a far smaller/lighter package. But get above 135mm (35mm equivalent) focal length and those savings effectively go away.

Don't get me wrong, I use my Fujifilm camera more than my full-frame Canon DSLRs. But it's almost solely because the Fujifilm is smaller and lighter to travel with.