I'm a Canadian-US dual citizen (born in the US to Canadian parents) but I've lived in Canada my whole life (aside from the first 3 weeks). I've never had an American passport or a SSN. I've never filed a tax return in the US, or really done anything there other than some cross-border shopping and being born there.
I've heard that US citizens living abroad need to file taxes in the US. Is this something I'm going to get into trouble for in the future? Should/can I just renounce my US citizenship? Or will it be revoked soon enough with a republican congressional bill against anchor babies? Or can I just continue ignoring things, and assume that since I don't have a SSN, the IRS doesn't have me on record, and won't bother me? Or do I really need to go through the process of getting a US passport and SSN (much of which requires in-person visits to embassies / consulates and other government agencies in both Canada and the US)?