Because European pedestrian safety requirements all but demand big bulbous front ends, it's uneconomical to design that much of a car or SUV twice and a fugly grill is the solution OEMs have deemed most effective at prettying that up. The trucks are all but forced to copy the same rough shapes because "brand identity" and "design language".

Aggressive styling and goes over the decades. You can make these cars look however you want with a little bit of black plastic and fake chrome with no impact on safety. The actual underlying shapes and dimensions that you are muddying the waters by conflating with aggression are driven by technical requirements.