Arguments still work, what changed is that people are developing the sharp notion that they don't want to be hurt. And in an argument one must accept that they might hurt the other (in a healthy way) to make a point.

Mostly importantly, they must accept that to have a healthy argument they must embrace the possibility of being hurt themselves.

Attack and defense is part of nature and essential for evolution, if we create aversion for this, there's a serious limitation on what we can say