I think you'd find if you did a poll a very large number of people on this site donate. Maybe not 5k per year, but a lot do their part.
If Jaime can't find the money to fire Prohm that's on him. If this were a one off situation it'd be understandable. There is no coming back from this from a recruiting or fan support level.
Skip the pedestrian walkway for another year and get a new coach, way more important.