You're undoubtedly right. My mother smoked, I'd NEVER let her hug me, they say, not even as a newborn.
How sad for you.
You know what? That had nothing at all to do with the fact that your mother smoked. That IS a psychological problem, which has been diagnosed many decades ago and it is serious. I've forgotten the name of it, but it IS a real problem; one which usually stems from alcohol abuse during pregnancy and/or physical abuse of a baby.