According to the rule of nationality and state succession, the residents of the territory that falls inside of a successor state acquires the nationality of that successor state.
Well, the "rule" is not quite as much of a hard-and-fast rule as you would like to pretend it is. Especially back in 1924, or 1948. (Remember, normally new treaties and agreements are NOT retroactive. And you cannot apply today's law to the past. You can't use the Vienna Convention.) So, if you are using this as the sole interpretation which grants a "right of return", you are on very shaky ground.
Further, even if we allow this rule, it applies to individuals. It is not a collective right. Nor is the successor's nationality automatically passed down through generations. After that initial succession, the normal domestic nationality laws would apply. States right to determine who does and who does not have nationality is firmly entrenched in law.
In addition, there are legitimate, legal ways for individual nationals to become de-naturalized.
So, while your statement is largely true with respect to today's CIL, it is not a golden ticket to "right of return".
And, aside from all that, are you FINALLY acknowledging that Israel is a successor state to the Ottoman Empire? Walk me through your thinking on how nationality passed from the Ottoman Empire, through the 1920s, 1940s, 1960s and right up to today?
What nationality do you THINK the Arab Palestinians have? Include those who still live in "their own country", and those who live other countries.