Rationing care under universal healthcare is political suicide. Look at the UK, Canada etc and parties campaign on investing more in healthcare while blaming the other sides cuts.
Who’s waiting under the Canadian system? Maybe in Conservative lead provinces the system has been cut or privatized so wait times go up but it is still worse come, worse served. In Canada if you’re being bumped it’s because someone has greater need, in US if you’re being bumped it’s because someone has more money.
Rule 1 with beer anywhere, if they export it to the next county don’t drink it. Guinness is the exception that proves the rule.