An autonomous fighting system is likely to reduce casualties on both sides, especially in this case.
When you have manned patrols they engage the enemy because otherwise they would be killed or hurt, they have more incentive to prosecute any enemy combatants because they are a direct threat.
Autonomous systems do not have that, they can can engage with both lethal and less than lethal options but they do not have the same sense of urgency to prosecute the targets.
Additionally in this conflict specifically you have one side which wants to inflict casualties at all costs including it's own men and if possible take hostages even if it's just bodies because Israel has released 1000's of prisoners before just to get bodies.
If there are no manned patrols organizations like Hamas and Hezbollah would be less inclined to execute attacks on the border their attacks have no strategic or tactical value other than to inflict as many casualties on both sides as they can.
Any Israeli they capture or kill is a political win for Hamas internally, any Palestinian Israel kills is a political win for Hamas internationally.
Israel has been operating UGV's for 5-6 years now the Gaurdium went in service a few years ago https://en.wikipedia.org/wiki/Guardium the program has been "terminated" but it looks like what they've done is simply taken the drive kit from the Guardium and put it on the Ford 150/250/350 trucks they use because it's cheaper than making UGV's from the ground up.
If the patrol that Hezbollah attacked in 2006 was a "robotic" one, Israel might have retaliated against Hezbollah targets in Lebanon but it would not have invaded, the only reason it did was because Hezbollah captured the bodies of Israeli soldiers. Captives whether they are dead or alive is simply unacceptable to the Israeli military and public at levels people in the west simply cannot grasp.
Every body and every body part must be retrieved this is prosecuted with almost fanatic level of commitment (case and point the philadelphi corridor incident where Israeli soldiers spent 2 days under fire sifting through sand to retrieve body parts after an APC carrying munitions exploded), the IDF through its all of is operational history and all of its wars only has had 5 soldiers that were classified as MIA and their bodies were never retrieved.
This includes 3 tank crew members which were captured during the battle of Sultan Yacoub (Israel finally managed to get the tank back from Russia this year), a navigator that was captured by AMAL (a Lebanese paramilitary organization) and one soldier that went MIA during his conscripted service, this isn't combat related (suspected suicide/criminal activity).
That's it, every other casualties and captive since the war of 1948 has been retrieved, when you take that into account replacing patrols with Ford pickup's that Israel will not start a war over makes a lot of sense.