For as long as there have been tanks, I think there have been cheap anti-tank weapons that are effective when tanks aren't operating as part of a combined arms

For as long as there have been tanks, I think there have been cheap anti-tank weapons that are effective when tanks aren't operating as part of a combined arms team with other maneuver, fires, and protection elements. There does seem to be a good case for replacing manned attack and reconnaissance aircraft with unmanned aircraft, and the Army appears to be moving in that direction with the recent cancellation of the FARA program (https://en.wikipedia.org/wiki/Future_Attack_Reconnaissance_Aircraft#Cancellation https://en.wikipedia.org/wiki/Future_Attack_Reconnaissance_A...), plus the use of Shadows since retiring the Kiowa fleet ten years ago. Replacing tanks with unmanned aircraft, however, would be replacing one tool with another tool that has an entirely different purpose.