Whether or not she is eligible is not the correct question. That would have been correct back during the era of the rule of law, but we are beyond that era, into the era of the rule of force.
So the correct question now is: “Even if she is ineligible, who is going to stop her?”
Exactly. The courts do not want any part of this, no one has standing they say. The parties won't check it to accept them as candidates for the party so our only recourse is at the ballot box.
Obama at least could claim one parent a US citizen, appears to have been born in the US, but was adopted in Indonesia, mom gave up their US citizenship in the process and he didn't get his first US passport until elected to the US senate.
Cruz's dad was Canadian, his American mom and him emigrated and because residents of Canada, where Cruz was born. Not board in the US, not eligible. Heck, he even agreed before he ambitiously decided to ignore that and run for president.
Harris was born in the US of two non-citizen parents, one was deported to Canada and she grew up and went to school in Montreal. Clearly not eligible.
Rubio, again non-citizen parents.
Ramaswamy and Haley, non-citizen parents.
How many have divided loyalties with dual citizenship? Heck, Harris might be Indian, Canadian, Jamacan; Cruz, Cuban, Canadian; etc. Well, our only apparent recourse is consistently refusing to vote for any of these ineligible people.