I agree with you- I do not I have any feeling for the people who are willing to cheat (whatever is their objective, main is to be with their loved ones), typical examples of this cheat is lying, tax fraud, even marriage of convenience e.t.c. But I do feel for their parents who are eager to be with their children and grandchildren. Also, I agree that not allowing to amend tax returns or permanent resident to sponsor is bit selfish, extreme, and short sighted, I guess. Some people really make mistake, that is why amendment of tax return is there in place. Also, I know quite a few who are here in Canada as a PR for more than decades, not applied for citizenship, as that create a lot of administrative issues to their family and relatives or owning property, e.t.c., in the home country.