The reality in the US is that to a degree we have already established a network that could be corrupted to preform covert and illegal activity silently. Involving a company like Huawei only escalates the likely hood of illegal use.
There are very few places in NYC where you are not on a surveillance camera. The value to the police is unquestionable. I often see the videos of crimes on the early morning news--and then the next morning the arrest of the perpetrators. It seems as if the bad actors have enough neighborhood enemies that have no qualms about dropping a dime on them.
While that serves a positive service it is only a breath away from infringing on human rights.
BTW, while the city has extensive cameras deployed across the city there are even a larger cache of private cameras that supplement the police network.
"A pessimist sees the difficulty in every opportunity, an optimist sees the opportunity in every difficulty” ---Sir Winston Churchill
"Political extremism involves two prime ingredients: an excessively simple diagnosis of the world's ills, and a conviction that there are identifiable villains back of it all." ---John W. Gardner
“You can’t go back and change the beginning, but you can start where you are and change the ending.” ---C. S. Lewis