This is a complete fabrication. You can get an x-ray for anything same day in any Canadian city. There is zero backlog for x-rays.
It's common for doctors to have a "single issue per visit" policy these days, which is completely ridiculous because obviously a patient's entire overall condition should be taken into consideration when deciding on a strategy to address issues. And patients are not themselves medical professionals, they are not really in a position to say that two different symptoms are actually unconnected. But doctors are paid by the government on a per-appointment basis so they want to churn through as many as possible. They want you out the door ASAP.
We basically are dealing with third world level of care in this country, and Canadians accept it because "at least we're not America". Even middle class Canadians are being forced to travel to the US to receive basic services in a timely manner.
I particularly agree with doctors doing little proactive work, but this is very doctor dependant. I've had doctors who are like this, and others who been quite proactive. I don't see what that situation would be any different in the US.
1: https://www.cihi.ca/en/wait-times-for-priority-procedures-in...
Maybe they are talking about hip replacements taking 6 months?