Quoting a US senator on technology is not exactly a strong argument. Like arguing about email security and quoting a senator on the technology committee saying he has never sent an email.
https://www.engadget.com/2015-03-09-lindsey-graham-never-sen...
In many cases senators are the least possible informed people on a topic, and are almost certainly not focused on the pure science of an issue. Quoting one of them pretty much means you are trying to sway me by using their position, not research.
Also, nothing that you quoted about 5G actually says it is unsafe. Saying that 2G and 3G are unsafe and that we don't know what 4G does, and that government doesn't want to investigate 5G, and that tumors of a certain type 'may be at least partially attributable' to cell phone radiation, and all of the other slights, all of that doesn't add up to 5G is unsafe.
This is the direct rebut to the article you linked, even from the same site.
https://blogs.scientificamerican.com/observations/dont-fall-...
> On the strength of epidemiological evidence, cancer fears are dangerously misguided: While American cell-phone usage has grown from virtually zero in 1992 to virtually 100 percent by 2008, there has been no indication that glioma rates have increased proportionally in the same period—a nonrelationship replicated by numerous other studies.
> David Robert Grimes is a cancer researcher, physicist, and John Maddox Prize–winning science writer. He is based at Dublin City University and is a visiting researcher at the University of Oxford. He advises, across Europe, on the public understanding of science, particularly on vaccination policy and combatting cancer misinformation. His first book, The Irrational Ape: Why Flawed Logic Puts Us All at Risk, and How Critical Thinking Can Save the World, is now available from Simon & Schuster UK.