Verstappen is just fucking dangerous with his on track 'defensive' moves. We've seen plenty of young drivers drive recklessly before; they're new and have a point to prove, they don't know when to attack and when to hold off, they don't know how to play the long game etc but that shit he's pulling it way beyond the standard 'no fear' antics of a lot of young drivers, had Raikkonen not stepped off the pair of them would have been going for a 300km/h + trip into the barriers and more than likely, if one had got any amount of lift, it would have been an airborne one.
It's one thing for the younger driver to barge into the side of other cars, out brake themselves and just do generally stupid stuff that ends peoples races but Verstappen is going to cause an almighty high speed incident at some point.
Hopefully he doesn't hurt anyone else in the process but he's really pushing his luck; currently with the FIA not even reprimanding him for it, it's probably going to take such an incident for him to realise how stupid it is. If it does happen and he still does it, well....I wouldn't be surprised if a driver has a face to face confrontation with him about it.
The first corner is a racing incident, he should get over it. His comments about the incident and those about the incidents later speak volumes of how immature and potentially dangerous he is.