Original intent is a legitimate constitutional analytical tool. You just happen to oppose it when it disagrees with your preferred policies. Which basically means you don't like having a constitution.
As to policy:
I agree with the policy approach most countries take: no birthright citizenship.
Birthright citizenship is a minority position globally. I nonetheless used to believe birthright citizenship was important. But that was before the Democrats started abusing it by encouraging human and child trafficking. And that was before I understood bloodline citizenship solved the problem better in modern times, and that the problem that birthright citizenship solved no longer exists today.
You're policy position is destructive to our nation. We can have open borders/citizenship, or a successful capitalist economy with a substantial government welfare safety net...we just can't have both. This SCOTUS decision will require, as a practical matter, that we substantially scale back our government assistance programs, that is, unless you are fine destroying the Republic.