Whatever “wealth” was stolen by hunter gatherer Celts 1,000 years ago has no bearing whatsoever on their standing today, unlike the massive fortunes stolen by the Tudors, the Stuarts and the Windsors. Or are you suggesting that Celts in Ireland and elsewhere are now beneficiaries of a few sacked towns in the middle ages? I’m part Irish and Scottish, but I seem to have misplaced my stolen bushels of English wheat and bits of pottery that have allowed me to live in the luxury I’m accustomed to.
The “queen isn’t english” seems like a bit of a pointless non-sequitur. Would you have me call them British royals by way of Germany and France? C’mon.
Whatever their 23andme, this family is the direct beneficiary of all the worst ills of the middle ages on through to colonialism, including slavery, mass murder, theft and cultural destruction around the world. They own untold billions in ill-gotten gains, not to speak of whatever benefits granted to them by the British government.