I feel like I'm losing my mind a little with it all tbh, watching the media berate ambulance crews and say how you can now only call an ambulance in an emergency.
You are only supposed to call an ambulance in an emergency!!!
In answer to your question, Tories, chronic underfunding, and overuse.
There absolutely are people who will call an ambulance to "jump the queue" despite the fact that you will still be triaged. There are also people who absolutely can make their own way to hospital but would rather call an ambulance. People who demand an ambulance for non emergencies.
People who present to a&e for minor issues.
People in this country seem to have forgotten how accident and emergency departments are supposed to work.
Also, the closure of our of hours minor injury units would have not helped.