Pope Francis recently said most Catholic marriages are null. The crisis management team at the Vatican has now issued a revised statement.
The pope isn't saying anything theologically innovative. The valid reception depends on the right intention of the recipient.
But the effect of his statement is to imply that most contemporary married Catholics who were married in the Church, are actually committing fornication.
I'd add that the issue isn't confined to married couples. As we know, a significant percentage of the Catholic clergy are homosexual. Many of them are active homosexuals. When they took holy orders, they had no intention of abstaining from sexual relations. Doesn't that invalidate their ordination? And if they were invalidly ordained, then that nullifies their sacramental actions.
If they baptize your child, that nullifies baptism. Nothing really happened. If they absolve you of sin, that nullifies absolution. Nothing really happened. If they celibates Mass, that nullifies transubstantiation. You're just eating bread.