That's not what they did. In the US, if you're a leftist, you'd almost certainly be a Democrat, that being one of only two choices. You are saying that not all

That's not what they did. In the US, if you're a leftist, you'd almost certainly be a Democrat, that being one of only two choices. You are saying that not all Democrats are leftists, that is true of course. But almost every leftist is a Dem.