Yes, look back in the history and read how many people dies through deseases. No you must not go into the past. In the present people dies because of deseases. What is with there natural immunity?
Why we need medicine? According to your post we dont need it.
You forgot that we live since the sinfall in garden Eden in a sinful World.
Would you also say that medicine is evil?
All have sinned and all will die.
You can have the world's best medicine and it will never save a single life - all will die.
Now, am i against health and our responsibility before God to keep our bodies healthy - absolutely not.
There is true 'medicine' and then there is the counterfeit.
There are few true prophets and the many false prophets,
few true teachers and the many false teachers,
the ONE CHRIST and the many anti-christs
The coming of the lawless one will be accompanied by the working of Satan, with every kind of power, sign, and false wonder, and with every wicked deception directed against those who are perishing, because they refused the love of the truth that would have saved them. For this reason God will send them a powerful delusion so that they believe the lie, in order that judgment may come upon all who have disbelieved the truth and delighted in wickedness.
Dear Aidan1, make sure you are not deceived by the modern miracles of medicine, the vaxx and more of what is to come.