So this is the thing you can call your representatives about. Google who your congressperson and your senators are, call them at least once a day. There's some templates of things you can say but also winging it is fine. You will either be directed to a voicemail or you might be greeted by a staffer who will ask for your comment or concern. They do keep a record for how many people call them about things, and candidates in purple districts are often more suseptible to pressure from the public, but this is an issue that affects everyone equally regardless of if you are a socialist, liberal, republican, or maga.
The ability of the government to track anything you post online and surpress it if it doesnt agree with their ideology is dangerous for literally every party, and it is only the big tech companies who will gain government contracts sifting through the mountains of personal biometric data and doling it out to the anyone who pays them, who will benefit.
Contact your congressperson and senators.
Let them know you are a concerned constituent in their state/congressional district, and want to make sure they will uphold our rights to free speech and privacy by opposing KOSA. Let them know that you don't trust private companies to your personal biometric data, and this bill will not even do anything to protect children, because it leaves companies like Meta unaccountable for the abuse that minors face on their websites.
This is big tech trying to buy the right to own the most important public resource, our ability access to information.
If they are concerned with protecting kids online, then the bill they need to pass is one that regulates the tech companies that operate with no oversight, not something that further surpresses the freedoms of american citizens.
(If you need help finding who your representative is, let me know and I can guide you through the process but its a simple google search of "which congressperson represents my zipcode" then go to their congress.gov page and look in their contact information section for the DC phone number