The problem here is not just Google, but huge companies in general that operate at a scale where algorithms are the only viable way to sufficiently keep abuse under control.
The companies you speak of are billion- and trillion-dollar companies. Banning people is not the only viable way of doing things.
The companies you speak of are billion- and trillion-dollar companies. Banning people is not the only viable way of doing things.
They have the money. They choose not to spend it.