this isnt true, there is no such "system." where they share ALL information. all the DACAers that moved to Canada don't know even know yet but they always stated that Canadian Immigration officials dont know what DACA is, and they dont know what the different immigration laws and statuses an individual can have in America.

for our express entry application they are only asking for the last 10 years of history. if you say that we're in the system for life, then we would be inadmissible because we accrued unlawful presence here in America but Canadian Immigration officials dont know American immigration laws and its specificity.

again, i wouldnt say anything is final because its a case by case basis, once we get our Canadian Citizenship in 2-3 years, we will let u know if we can come back. our lawyers said dont try it, but i guess we will never know.