> That statement is not wrong.

Yes it is. Unless you use Erlang or OS processes you are sharing memory. Or rather you not sharing it any more or less than all the other technologies you listed.

But I agree with your sentiment in general that shared memory and concurrency are not working well. That is why it is worthwhile learning Erlang if you want to be reliable, fault tolerant concurrent systems.

Also nothings stops your from using queues and threads so data is local to each thread and gets copied over the queue.