No, either you are under the jurisdiction of the US govt or you are not. If you are within the border of the US, yes, you are subject to our laws, just as you, as a US citizen, are subject to the laws of other nations when you are within their borders. At the time Kamala was born, Kamala’s parents were under the jurisdiction of the country of which they are citizens, and that was not the US.
If you are subject to the jurisdiction of the US, that means, for instance, you are subject to the draft (if you are male), you can vote in US elections, your children are US citizens no matter where their mother gave birth, you are subject to US taxes, you can obtain a US passport. If you do not have a right to these things, or an obligation as the case may be, then you are NOT subject to juristiction of the US.
Subject to the jurisdiction means also that if you find yourself in some difficulty in a foreign country, the US consulate/embassy is available to you. As well, a foreigner in this country who is having difficulties here, can make use of his consulate/embassy.
There is no such legal status as partial jurisdiction. If you are in this country, you are subject to the laws of this country while you are here, and there are some taxes you may have to pay, but that is NOT NOT NOT the same as subject to the jurisdiction of the US. If you are a foreigner here in this country, and your child is born here, your child is not a citizen of this country, your child is a citizen of the country that you are.
The 14th Amendment discusses the status of those born here ("subject to the jurisdiction"), not their parents.
Harris was born here. Are you saying she's not subject to our jurisdiction?
Do you contend that she can't vote or get a passport?
If you are a foreigner here in this country, and your child is born here, your child is not a citizen of this country, your child is a citizen of the country that you are.
So now you're saying Kamala isn't even a citizen?