In context, people mean "illegitimate robocalls." Nobody is proposing to outlaw legitimate robocalls (like when a pharmacy makes an automated call to notify you that a prescription is ready.)
It's mostly illegal to make human or automated marketing calls to numbers in the US that have signed up for the national Do Not Call registry. The problem is that huge numbers of illegal calls still reach numbers on the Do Not Call registry. Most of these illegal calls have no connection to any real business; they are instead trying to defraud people. I have often been called by "Microsoft Support" to alert me to Windows problems that need fixing. I don't have any Windows computers.
It's mostly illegal to make human or automated marketing calls to numbers in the US that have signed up for the national Do Not Call registry. The problem is that huge numbers of illegal calls still reach numbers on the Do Not Call registry. Most of these illegal calls have no connection to any real business; they are instead trying to defraud people. I have often been called by "Microsoft Support" to alert me to Windows problems that need fixing. I don't have any Windows computers.
https://en.wikipedia.org/wiki/National_Do_Not_Call_Registry