Non-ionizing radiation has biological effects. Magnetic fields have biological effects. This is not controversial! Many replicated experiments prove it!
I am not going to say Wifi causes cancer because I don't know (doubt it). But this reflexive bleating about non-ionizing radiation needs to stop. Radio waves do not have to break DNA to affect biological tissues. They can alter many important chemical reactions.
Something having biological effects proves absolutely nothing.
Non-ionizing radiation has biological effects. Magnetic fields have biological effects. This is not controversial!
So?
Also, if you are worried that spending a lot of time "exposed" to a light breeze is going to give you skin disease, you might want to read about hypochondria because you have it.
That said, the power levels emitted by wifi devices are so far below any safe exposure limits that it's laughable.