Almost every normal person sees this through the eyes of the consumer because paying the electric bill is their primary interaction with the issue. What you're describing is politically a tough sell.

It worked before, so start the buses:

"We send the UAE £350 million a week, let's fund our NHS instead"

"We send Saudi Arabia £350 million a week, let's fund our NHS instead"

"We send Qatar £350 million a week, let's fund our NHS instead"