A sentence from the article that pretty much sums it up for me :
“At the end, this story is just a numbers problem,” Mr. Tourtellot said. He noted that in 1960, when the jet age began, around 25 million international trips were taken. Last year, the number was 1.3 billion.
As for the cities that are the major destinations? They are “the same size they were back in 1959, and they’ll probably stay that way,” he said."
In short, go off-season, or look for new destinations that are less frequented. Things are not going to change for the better, at least in the popular destinations.
That said, to each his own - there's no such thing as "proper" travel, just travel that you enjoyed, or didn't.