Poor people vote, and someone needs to gobble up those votes, and Democrats have filled that void since Andrew Jackson. Many poor people need help and are unlucky and I'm sympathetic to that, but there needs to be a balance and we need to be sure we're not punishing success and strangling motivation and innovation. Most poor people would "make it" if given the choice, and I think few would, once they're sitting in a different spot, want their hard work to be rewarded with higher taxes and more regulations making it harder to "make it" in the first place. And that's what Democrats offer every two years.
I agree with the bolded, but we're going to have to agree to disagree on the taxes and regulation. I don't think that most center-left Democrats ask for punitive levels of taxation or regulation on high income earners or businesses. The Sanders wing of the party does, but that's part of the reason why I'm no longer a Democrat. Anyway, we're getting way off topic.