I departed business in a similar manner to you, made all GST/CPP/EI remittances and got out with my backside intact. 20 years, dozens of employees, built up about  $500K in retained earnings (little RRSP's) but ended up burning them up to pay out staff severance. 

It's not about tax breaks, Rich. It's about the grievous notions that government will heavily confiscate one's proceeds from intense, risk taking ventures. Ventures which are vital to Canada.  This country has 5 million people who work in small business. Those entrepreneurs  have none of the  protection of the public sector or unionized private sector. You and I both know the inordinate risks business owners take.

I was one of a dozen speakers at a large private technology business function recently.  It was so encouraging to see that, upon a show of hands,  almost 100% of attendees emphatically stated they will NOT vote Liberal in the next election.  Upset within business is palpable, thankfully.