A double standard on bodies and choices
An internet search will quickly show that the majority of anti-vaxers are from the conservative demographic. Similarly, the majority of people who are anti-abortion are conservative. Thus, they are being hypocritical by saying, "You cannot mandate that I get COVID vaccination because it's my body, my choice. But once a female discovers she is pregnant (Texas law), she cannot get an abortion even though it's her body, it's not her choice."