You're accusing them of intentionally targeting civilians, and I've yet to see any evidence of that. It's more accurate to say that Israel doesn't care much about collateral damage.

The excuse of collateral damage doesn’t even make sense, they shot artillery at the exact place they knew there would be civilians because they sent them there.

If Hamas was there too, it makes sense and it is in fact collateral damage. Israel will attack potential targets even if there's the slightest connection to Hamas. Evidently they built ai for this purpose, which gives them targets faster than they can bomb them.

Israel barely considers Palestine a country in the first place. How is this a “war between nations”

A nation is different than a country or a state. It just means a group of people with shared purpose. Israel disputes that Palestine is a state, not that it is a nation.

And they did have some limited sovereignty, they used it to attack Israeli civilians.