Not all robots on the battlefield are going to look like the Terminator. In fact, few will. Take for example this model from Deloitte which looks like a remote control car minus the body. The vast majority of uncrewed systems of the future will be attritable, essentially one-time-use affairs with specific missions in mind. They’ll also be configurable with difference payloads and we will likely see swarming of ground systems to overwhelm an enemy’s ground forces with targets that may not be what they seem on a screen. Imagine creating a mini task force of robots with ISR, EW, and kinetic payloads on a platoon of robots and unleashing them on the flank of an enemy vehicle column. You can get the desired effect without ever putting a human at risk.
Yup, cheap, configurable, and suicidal is definitely the way to go at the boots-in-contact level.