There are a number of major problems with this nonsense, not the least of which being the fact that few people even know what a Pardon, or more accurately a Conditional Pardon, even entails.
First, let me state clearly that no one is denying the facts that: 1- Homolka's crimes were truly heinous and despicable, 2- The Crown prosecution totally botched their case against her and 3- She got off with an inappropriately lenient sentence. Not one of these issues can be rectified by rallying against a Pardon.
What is a Pardon? (from Pardons Canada)
A pardon allows people who were convicted of a criminal offence, but have completed their sentence and demonstrated they are law-abiding citizens, to have their criminal record kept separate and apart from other criminal records. Pardons are issued by the federal government of Canada. This means that any search of the Canadian Police Information Centre (CPIC) will not show that you had a criminal record, or that you were issued a pardon.
It is NOT forgiveness or absolution. The record is sealed but not expunged and can be reopened at any time in a future trial and is admissible as evidence of previous criminal activities. Nothing more, Nothing less. That's why it's called a "Conditional" Pardon.
Now this is an extremely important point to consider... Last month, when the story broke that former Conservative MP Rahim Jaffer escaped serious charges of Cocaine possession and drunk driving, there was public outcry at the suggestion of government interference in legal due process. Now, with this nonsensical clamor against Homolka's Pardon, there is suddenly a public outcry for the government to interfere with legal due process. Does no one see the sheer hypocrisy in this... ANYONE? Not to mention the potential slippery slope; this year it's a serial killer denied a pardon due to public pressure, maybe next year, due to the pressure from a different interest group, it will be kids busted for Marijuana possession.
I guess the last and most basic point that people seem to miss is that she is Karla Homolka. Parole, Pardon or even Canonization will never take her horrific past from our memories. She can never have a normal life, will never enjoy anonymity. Trying to block the Pardon serves no positive purpose so save your breath.