All the tech support jobs I get involve doing something illegal?

I recently put a listing on craigslist offering tech service. I do installations, setup, computer programming, virus removal, repair, and iphone/android/router flashing, unlocking, blah blah blah. I'm familiar with Linux, Windows, and Mac and am can build basic electronic devices. During the last few days I've gotten calls to build/locate a cellphone jammer (illegal in the US for decades as it impedes people's ability to call for help, frequency blocking in the US is illegal on any spectrum/device), do carrier unlocks without asking the carrier, and install tracking software on other people's phones?

What do you expect on Craigslist?

I had the same experience.