> There will be side effects

Everything in life has side effects. Everything in life has trade offs. It's not about the lack of side effects or even their magnitude or severity, it's about balance: do they help more than they harm?

The most innocent substance out there, water, can kill you. And I don't mean drowning.

https://en.m.wikipedia.org/wiki/Water_intoxication

Many of the arguments people make about modern medicine are:

A) uninformed

B) not made in good faith

Modern medicine is serving us quite well, so any counter argument better be rock solid.

I'd be curious what your specific complaint is and how you back it up.