Nope (most) people are arseholes. There have always been arseholes,just not as many people close together,interacting so frequently and on a daily basis. The chances of meeting an arsehole are higher tho.
However, I bet even in prehistoric times poor Grunt had a moan ,a groan that the Flinstone dude is bashing rocks at 6 am trying to invent fire. Then bashed him over the head with a bat and stole his wife.
And 300 years from now (if the planet doesn't blow up) miss Jetson will moan that some arsehole's robot bumped her robot on it's way to the shops.
All this whinging of "people just aren't nice anymore" is pointless, they never have been. They never eill be.
They used to watch people being mauled by lions and killing each other in roman times. They used to watch people being crucified. They used to watch people being hanged in England. In places with the death penalty people are still allowed to watch behind a screen (for closure rather than entertainments but still). People film tragedies,accidents and fights and put them up for views ,likes ,entertainment and attention .
However,if I'm entirely honest I think things are actually better in many ways, especially when it comes to children. Still a long,long way to go though.