A proportional type gov with lots of minority parties is great – but name a significant world power with a large military and the ability to enforce their world view globally that uses that political system/approach. The big powers, the USA, China, and Russia, are not made up of these disjointed, mired in debate type governments.

Sir, this is a Wendy's. Canada is not a "big power" and "big powers" did not become "big powers" because of FPTP.