I'm sorry, but margerine is just nasty.
It's worse than that.
A good many years ago, my summer job was in a factory that made swimming pool filters. The sales manager was a young guy who had a degree in chemical engineering. Dunno how he ended up selling swimming pool filters, but there he was ... and we were both car nuts, so we became friendly.
A year or so after the last summer I worked there, he moved on to a much better-paying job at a chemical company. Got himself a pretty wife, bought a new house, and a Mustang Shelby Cobra 500 (the original -- I did say this was awhile ago). He invited me up one Saturday to meet his wife and see the new house and car. Somewhere during the over-dinner conversation, the topic of butter vs. margarine came up. He flatly stated that he would not allow it in the house. Naturally, I asked why. He told me.
Turns out, margarine is a chemical by-product. My friend found out that margarine is made out of what's left over from when his company made other, higher-priced chemicals. He said once he learned what it is (not "what's in it" -- I said "what it is"), he decided it's completely toxic and not fit for human or animal consumption.
Who am I to argue with a chemical engineer about chemicals? Butter tastes better anyway.