For as long as I have been in aviation and undoubtedly before that, the overwhelming cause of ALL air accidents - globally (betwen 65-75% dependent on the source)are down to Human Factor or 'pilot' as we are colloquially known

These stats are stable at this level and have been for many years. Automation is the only way forward from this day on and as soon as we have pilotless aircraft, you will notice a sizeable change in the stats.
To ERR is human......................................