This is probably too pessimistic. If it was true we would not be writing this right now, we'd be still in some semi-wild state, ripping each others hearts out as battle trophy to dedicate to some imaginary god. If predatory behavior really had the upper hand it would not allow the kind of social structures that solved difficulty technology problems and allowed mass health, mass education etc.

But destructive, rapacious, behavior feels just one step away even now that we are supposedly "civilized" and we have excruciating records of our bloody history.

If we don't find a way to bottle this instinct up we will not see many more decades.

Time is running out because the system is not time-invariant: we had explosive population and technology growth. The same regressive traits that might have "only" annihilated isolated cultures in the past will bring our collective demise.