HELP!!!

I have a semester off between grad school and med school, and I'm home in California available to be a non-idiot at a legislative committee meeting on a bill. It's bill SB277, proposing to make California as progressive as Mississippi and West Virginia by eliminating personal beliefs exemptions for vaccinating one's children. Only medical exemptions would be permissible.

What should be my arguments? Should I prepare a statement? I don't know how this shit works!!