Is there a right to absolute bodily autonomy?
Spoiler: The answer is yes, but you can willingly give up your bodily autonomy through your behavior.
The right to bodily autonomy is a tricky issue, and it is easy to both overstate and understate our case for whether or not we have bodily autonomy. My position is that we have absolute bodily autonomy and that right may not be abrogated. This is because we are made in the image of God, and both civil government and other citizens do not have authority over a body that bears His image. However, we can willingly surrender our right to bodily autonomy.
What this means is that adults have absolute bodily autonomy in that no one has the right to touch or do anything to our bodies without just cause. That means government cannot kidnap me and hold me hostage if I have committed no crime. If I am minding my own business and following the law, then I have absolute bodily autonomy.
However, if someone steals something, or drives drunk, or does a number of other things, the civil authority can arrest and imprison him. In the case of crimes like murder, the government has the authority to execute the murderer. But in those cases, the lawbreaker has willingly and intentionally surrendered his bodily autonomy though his behavior. No one is violating his "rights" because he willingly surrendered those rights.
The government also has authority in protecting public health in the event of a pandemic or other things that threaten the lives and bodies of others. This falls under the libertarian principle that you may not do something that harms or needlessly endangers the bodies, property and liberty of other people.
Note that I italicized adults above. Children under the authority of the parents are a different matter, as God has given parents authority over their children. Both God's law and our civil laws recognize that parents have both a moral and legal obligation to care for those children. So no, I do not care that a toddler does not want to wash his hands. Parents have the God-given authority to force the child to wash his hands in order to protect him and other family members from disease. This authority applies in many other contexts for the protection of the child.
Where bodily autonomy is most often invoked is the alleged "right" to have an abortion. The bodily autonomy of the unborn baby is why abortion is wrong, along with the fact that the baby was made in the image of God. Murder (which obviously includes abortion) is the ultimate violation of bodily autonomy, and government has both the authority and the obligation to criminalize it.
People can also surrender their bodily autonomy to other people. For example, if someone threatens or harms others, and the target of the crime physically defends himself or others, the aggressor has knowingly, willingly and intentionally surrendered his bodily autonomy to the person defending himself or others. If someone makes the choice to threaten others, then the consequences of that choice are what he has chosen. I am 100% pro-choice in that regard.
So yes, as an adult you have the right to absolute bodily autonomy, up until the point where you endanger the lives, safety, health or property of others. Once you violate someone else's rights, you willingly surrender your own rights. The application of this principle will always be the subject of disagreement, and people of good will can have different opinions.