If I was wounded (or even witnessed this in real life), I would go from civilian to combatant instantly. Israel just attacked a bunch of civilian population centers. This will be seen as a huge strategic mistake, both in terms of new combatants created on the ground and continued loss of good will for Israel abroad.
I think you are missing context. 10 years of civil war and many more decades of animositiy and of strife, are not reversed overnight , even due to an event like this. For example, Israël has lobbed missiles before, and that had its collateral damage, but also didnt change a thing or win new allies to Hizbullah.
Even some druze (historically neutral sectl were kidnapped and killed in the Oct 7th events.
Now, for the 1st time in 100 years, every single rival of hizbullah is able to instantly recognize enemies, in the open.
Obe thing im certain of, Israel has managed to reset the board in its conflict with Hezbollah.
Even if all that is true, for all intents and purposes, it's a moot point.
The only people that share borders with Israel matter. That is Syria, Lebanon, Jordan and Egypt. 2 of those 4 have firm peace agreements in place, and have converging interests to control their extremist interests. Syria has its own issues and a defacto govt ban on extremists. Lebanon just had its entire terror contingent permanently labeled.
If you notice my statement, 3 of the 4 of israel's borders were more or less under acceptable control. Now, Israel has likely managed to reset the board for the 4th and final border.
Again, time will tell if the long term consequences you envision matter in any way. I contend they dont, in comparison to the gains they just made.
The only reason IL can do it, is because the general population in Lebanon hates hezbollah, it is basically a proxy control power from IRAN.
Look at this to understand how big part of Lebanon sees Hezbollah https://www.instagram.com/brigitte_gabriel/reel/CyT_RanK1gi/