At least in the United States, it's a dramatic oversimplification to say that there is a vocations crisis. On average, the ratio of baptized Catholics in the United States to American Catholic priests is about 1400:1. If the typical Catholic family comprises three persons, that's not quite 500 Catholic families to each priest.
However, these ratios vary widely from diocese to diocese.
In the Archdiocese of Washington, there are about 500 Catholics to each Catholic priest.
But in the Archdiocese of Los Angeles, it's more like 3,500 to 1, and getting worse each year.
The Diocese of Orange, CA is over 4200 to 1.
Vocations to the priesthood don't seem all too problematic in dioceses that are relatively orthodox in teaching and practice. You don't see too many threads about clown Masses in the Archdiocese of Washington. Vocations here are going pretty well.
You may have seen some threads related to the abuses rampant in the Archdiocese of Los Angeles. Although they have eight times as many Catholics as the Archdiocese of Washington, they ordain less than half the number of priests each year.
Thus, it doesn't appear that the fix is ordaining married men, but rather, is continuing to work to make our dioceses more faithful to Catholic Faith.
You have to realize that we Orthodox Christians are used to numbers far less that half that per priest. We have priests tending parishes of less that 100 people in some cases.