Nevertheless their citizenship is fraudulent, and the fraud was perpetrated by the government itself.
I get what you are saying, but we need to get back to sanity on immigration and citizenship policy. Immigration should serve the interests of citizens. Candidates for immigrant status should be people who admire us and want to be us (and have something to offer the country by their presence in it). Absolutely no one in government seems to think like this anymore.
We have forgotten that immigration must server the interest of the Nation and its Citizens, not the immigrant.
Emigration is arguably a right - you have the right to leave.
Immigration is not a right - you don’t have the right to go where you are not wanted.