As [you] a newly self-realized "democratic-socialist"
O.o ...I'mmm not sure you will understand this
o.O but for what it's worth:
https://youtu.be/fvY28ttDKo8
you might
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imo they do have their differences, actually quite staggeringly so. In fact so much so, some are no different than liberal-progressive democrats. Others are very conservative, others moderate, some mixed. Even the newer hip thing of conservative-libertarianism (e.g. Rand Paul). Few other examples in general.
This end of the political spectrum ...away from the leftist end of the dems, is pretty much about individualism. It to some degree starts in the democrat party (such as the example link) and goes right into the repub and libertarian parties (while Green is left-centrist and CP centrist-right). There is quite a bit of overlapping among all the major parties (including the few active 3rd parties), in that something like the 200k+ dems so far breaking with their party and registering repub this election cycle.
It's hard to find two repubs with the same opinion, I've been debating with them for years. I guess all the short fat people (as you pointed out yesterday) are all on the left. After all, this is a Constitutional Republic, you can be a classic liberal like JFK and actually support the constitution, thus be liked or even not outright rejected by others on the right end of the spectrum. Just as much as say neocons in the repub party are threatening to vote for Hillary, as the constitution is just butt wipe and establishment hawks like 0bama and Hillary are attractive to them, same beast.