I think Quebec is a beautiful province and Canada is richer for it. One of my son-in-laws is from Quebec, and I've had the opportunity to visit Montreal. My province has a fairly large french community as well. I'm not crazy about forced bilingualism, but a second language is a good thing.
HOWEVER....Talesin is completely right. The rest of Canada has been held hostage by Quebec's threats. Every time they threaten, they get all kinds of political concessions and extra money - so it's become an efficient tactic.
A disproportionate amount of tax dollars go to Quebec, and the federal government's favoritism towards that province is quite staggering. Federal transfer payments, for example. Alberta gets half of what Quebec gets, yet Quebec's GDP is higher than Alberta's. That's just one example. Government bailouts for companies like Bombardier have disproportionately enriched Quebec. Up until last year, Quebec received more half of the federal budget for Canada Day festivities - the rest of the provinces divvied up the rest. Quite the irony, really.
One thing that has always angered me is the huge difference in university cost. Quebec students are striking against small increases. In Quebec, the average cost for university is $2500 a year, while Canada average is $5,300. The majority of the other provinces are well over $5,000 a year. Only Manitoba and Newfoundland are lower. Alberta students pay $5,600. Why? Perhaps if we received a fairer share of federal money, we could lower our tuition, too.
So, no. Quebec could not survive without the money it receives from the rest of the provinces.