I, for one, would welcome the removal of 10% of coach seats, with the extra space distributed to provide extra leg-room throughout coach, even at the cost of a 10% fare increase.
Actually, since not all flights fly full, the profit-neutral solution would probably allow more seats to be removed to balance a 10% fare hike.
Well, since the airlines have raised prices, at least around where I live, another 10% wouldn't make much difference.
Because of the discomfort, aggravation, and inconvenience of airline travel, I am willing to pay upwards of 30% more to travel by car instead.
Shorter trips, 600 to 1,000 miles by car, often cost less to drive than fly, depending on the duration and purpose of the trip.