Yeah social security taxes are shockingly high compared to CPP, so at that income level, Canada has lower taxes and so the IRS foreign income tax credit does not help you.
So how did you answer these?
Have you EVER not filed a Federal, state, or local tax return since you became a lawful permanent resident?
If you answered "Yes," did you consider yourself to be a "non-U.S. resident"?
Have you called yourself a "non-U.S. resident" on a Federal, state, or local tax return since you became a lawful permanent resident?
?