What does "deserve a state" mean? In practical terms it would seem to mean nothing at all. States exist or not because of the power to make them exist and preserve their existence as well as their acceptance as states by
other states.
Correct.
the world is a savage place, especially in the modern era's foundational stage when most of todays borders were set.
All around the world we can point to aggrieved peoples who were displaced by new comers who followed the principle of 'might makes right' when borders were set and countries formed.
At the end of the day we have no other principle, despite pretending we are evolved as Russia is now flexing. If Russia wins in Ukraine then their might makes them right and Ukraine WILL fold in to Russia. If they lose then Ukraine supported by those who oppose Russia are right, via might.
We have not changed, much.
So if we are going to acknowledge that, then Israel and its supporters who established the Jewish State were right, as they had the might.
But if you want to instead stick to arguments about more Indigenous type claims, saying Palestinians were the original peoples of that land, and deserve their own State, ... well that includes the Jews too as an original peoples of Palestine.
So either way you look at it the Jews would have a right to a State, in the region and when offered they said YES and took it. The remaining Palestinian people, when offered a comparable Country of their own said NO. And the argument seems to be, they will refuse as long as a Jewish State exists, as they think they should have and control the only one.
So while i am enormously sympathetic to the people trapped in this ongoing conflicts and tragedies i the region, I see it as the making of one key party. The Arab nations who DO NOT want either a country for Jews or Palestinians on their borders and who would see them fight forever and are willing to pay an Oil tax of billions upon billions to keep it going.