The general concept that some unarmed folks could handle some 911 and other calls makes sense to me, IFF the dispatcher can tell the difference. Right now, police are handling things like traffic accidents, which could be handled by traffic cops, like meter maids in effect. Would that be ten percent of a force? Probably more like 2-3%.
The main issue I see is not as much funding as staffing, a lot of city PDs are understaffed because they can't find and train recruits fast enough for some obvious reasons.
Were I on a Big City PD, I'd be looking for a job in the 'burbs.
And obviously folks who live in the country have "less need" for police presence, they have shovels or ditch diggers at minimum. That is a dumb comparison.