Well yeah, stuff goes extinct all the time, but on scale of millions/tens of millions of years. the pace we're seeing these days is unprecedented and the pace is more on level of mass extinction rather than business-as-usual evolution state.

Sure, we can keep looking at the half-full glass focusing what is not extinct yet, but over few generations, we might be pretty lonely on this planet when it comes to complex life. It's more an indication of how badly we're screwing our own environment, also for ourselves. It's clear that life itself will survive much harsher situations compared to mankind and repopulate once we're long extinct.