"Brian Mulroney took a booming economy 1985 - 1990"

Not technically correct, 

http://2.bp.blogspot.com/-wfQEmHqtBDo/TxOHUs2J3hI/AAAAAAAACRc/Cv-bcovV7Vc/s1600/Screen+shot+2012-01-15+at+10.07.43+PM.png

You might also want to look at Trudeau's record deficits 

http://www.fin.gc.ca/frt-trf/2015/frt-trf-1501-eng.asp#tbl2

You can also see the falling Real Median Incomes he caused here

http://worthwhile.typepad.com/worthwhile_canadian_initi/2013/09/trends.html

No one recovered well from the 2008 recession, Canada did better than most. 

We could become more"Independent" and "Sovereign" by reducing exports and crushing the economy, kinda like Venezuela, but that would cause the kind of depression you just criticized, so which do you want?