It depends what you want to do. System integration is sort of the broad name for people in my field. Its a software stack sort of like how networking layers work. Controls->scada->MES->janky messaging connector->SAP with other random stuff sprinkled in. The Wikipedia article has an OK introduction to it.
If your interested take a controls class that actually uses Rockwell or Siemens PLCs, not the theoretical stuff. There is also open source stuff that runs on arduino or other controllers.
Or see if you like programming. Python is used for inductive automations Ignition SCADA and visual basic/C# is AVEVAs wonder ware. Their are others out there, these are the ones I’ve used.
I choose not to have empathy for those who wouldn’t have empathy for me in the same situation. He openly mocked people who die to gun violence, so no sympathy from me. I lean towards enjoying that he is gone. The line for me is killing is bad, but I’m glad he’s dead.