Because many people are scientifically illiterate and a lot of people prefer certain types of answers.
It seems to be like going back, hundreds of years ago, when (some) people believed in witches.
So, they are burning 5G things or street lights, instead of witches, these days. Because of (apparently) mistaken beliefs.
People mistake technological advancement of society for an increase in the IQ of the general population. At least back in the day some people knew their place.
I suspect (without trying to sound snobbish), the inner workings and exactly what 5G is (technically speaking), is beyond (unless they were taught about 5G), a number of normal/average, Mr Joe Bloggs, of this world.
So when they are told it is an evil plot by governments, to mass infect the general population, with a virus.
Unfortunately, some people believe it, and get riled up enough, to set them on fire. As per recent news articles, about a few of them, being burnt down in the UK.
It reminds me of distant history lessons, the Jacquard looms being destroyed, because of fears it would mean everyone losses their jobs.
I didn't think those times would return, in my lifetime.
Apparently, there is a name for it 'Luddite'. (Not exactly the same thing, but vaguely similar).
https://en.wikipedia.org/wiki/LudditeLater interpretation of machine breaking (1812), showing two men superimposed on an 1844 engraving from the Penny magazine which shows a post 1820s Jacquard loom.[c] Machine-breaking was criminalised by the Parliament of the United Kingdom as early as 1721,