That is not what I said; this is a strawman. I said, 'Jewish people deserve sovereignty over their ancestral homeland' (i.e. Zionism). This is completely orthogonal to 'Israel represents all Jewish people'.
That being said...
> It is as crackpot as saying Switzerland, Austria and Germany all represent all Germans.
I don't think that's crackpot at all. What's wrong with an ethnic state representing its people's and diaspora's interests? Why do you think countries today issue their citizens with passports? Why do some countries give even non-citizens a fast-track path to citizenship or at least an indefinite multiple-entry visa, provided they're of a certain ethnicity?
A plurality of countries today are ethnic states, by the way, including essentially every European state. I am very happy to say that the German-speaking part of Switzerland, Austria, and Germany absolutely represent Germans as a whole.
As an addendum: printed on the inside front cover of my A1 German textbook was a map of Germany, Austria, and Switzerland. Make of that what you will.
Having colonial powers create an state in a place where people already lived, and which did not consent to its creation, was a terrible terrible idea that led to tremendous suffering a loss of life over the past 75 years. Acknowledging this is not antisemitic.
Perhaps you mean that Germany and Austria have no right to exist, because Germanic tribes are just recent migrants there in the last 2000 years who came from the Urals or something? But wouldn't that be denying agency and stripping identity from the people who actually live there now?
> But wouldn't that be denying agency and stripping identity from the people who actually live there now?
Indeed, that's why the founding of Israel was so problematic. Living somewhere 2000 years ago does not trump the rights of the people who lived there for the last 2000+ years. If we are to be consistent, Berlin must be returned to the West Slavs, London to the Celts, and so on... it's nonsense.
In the West we have (at least) started to acknowledge the crimes of colonialism and the various wars of conquest over the centuries. For us it is not existential, to acknowledge that what the British did during the slave trade is not existential. But for Israel it is, so many Israelis have to just pretend that the founding of Israel was perfectly just and fair, when it so obviously was an act of total lunacy when looked at through today's eyes. Please note, I do support the continued existence of Israel, because I favour the status quo, but its founding was an act of monumental stupidity.
Think about how stupid what you wrote is in the context of a hypothetical second Jewish country that also claims to represent all Jews.
It is as crackpot as saying Switzerland, Austria and Germany all represent all Germans.