The dashcam owner didn’t do anything illegal but people are saying he should have shown more patience. What do you think?

An Alfa Romeo drivers attempt to shame another person during a prang in NSW has backfired spectacularly.
Video provided to Dash Cam Owners Australia shows the driver exiting a roundabout at Port Macquarie.
A Volkswagen Amarok is to the Alfa Romeos left but after both exit the roundabout the Amarok has to merge into the Alfa Romeos lane.
The Amarok driver signals something to the Alfa Romeo driver as they attempt to merge and the Alfa clips the ute briefly at the rear. 
Oh my God, the Alfa Romeo driver says.
A Volkswagen Amarok tries to merge into a lane and is clipped from behind.
They both continue their journey after the Amarok successfully merges before pulling over to discuss the incident.
Dash Cam Owners Australia claims the person filming it told them the other driver had unreal entitlement.
The woman beside me wanted to get in front of me despite there being no one behind me and it being her responsibility to yield, the Alfa Romeo driver said.
She even had room to merge into the left lane. 
Nope, aggressively hung at the window, shouted at me several times, once you can see and then started to throw her Amarok towards me to scare me off and then just decided that wasn’t working so she plowed into me.
He added it was completely her fault.
However, it seems not everyone agrees.
Under NSW road rules the Alfa Romeo did not need to let the Amarok in. It would be a different story if the merge seen in the video was an example of a zipper merge.
But people watching the video said the Alfa Romeo driver just needed to show some patience and courtesy to avoid the collision.
Whilst the Amarok did not have right of way and basically jammed himself into the space. It really isn’t that hard to be nice, one man wrote.
Another man added the Alfa Romeo driver had a good 30 seconds to slow down and let the other car in. A woman also pointed out the driver admitted there was no car behind them and could have slowed down to let the Amarok in.
Common courtesy doesnt hurt anyone, another man wrote.
Some people blamed the Amarok driver – pointing out the road rule for merging.
However, one woman suggested the video is an example of how both drivers are at fault.
The other guy also sped up as the lane was ending just to be in front, she wrote.
Why couldn’t he just slow down and zip in behind? I think in this instance both of them are as bad as each other.
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