The state legislators, via the ballot box.
It is the USSC’s place to interpret the Constitution. Ideology can influence that, as it did with Roe and the imagined right to privacy that is not mentioned in the Constitution, but ideology is not supposed to influence that and thus Roe is reversed. The original ruling was an error.
The error is fixed. It is not a declaration about abortion.
This drug was approved by the FDA. Its approval is not about the Constitution. The USSC is indeed not the right place to make the complaint.
The right place is in Congress and the Presidency, who can change FDA policy. If you can’t get consensus there, you lost.