For someone who has no immediate family in the USA (i.e. most people of the world) the reunification venue is closed. I'm not sure what you're trying to argue here.
But for someone who has, the door is wide wide wide open.
Yes and if you have 10 million dollars you have options for wealth immigration, the door is wide wide open. Do you think that makes immigration to the USA incredibly easy?
wealth immigration is the productivity path not family path
OK, so it being easy for a subset of people doesn't mean it's "easy" in general.