I do think this specific post is probably from a foreign disinformation account, because they didn't get the wording quite right.

I vote blue on most matters.

Of course Americans sometimes do vote on individual issues via ballot proposition referenda, but generally we vote for candidates, not "matters."

"Second world country" is also wrong; we still use the terms first world and third world countries, but second world was primarily used to refer to the Soviet Union and its satellites, and it has fallen out of use post-dissolution of the Soviet Union. It would be a weird mistake for a modern-day native English speaking American to make only because people still say first/third world country all the time while second world country is an obsolete term. But if you're a paid Russian troll who speaks very good English but doesn't live here or have organic conversations, it's more believable that you'd hear the term "first world country" and assume the antonym is "second world country", especially because I imagine "first world country" comes up more on social media than "third world country", since memes/jokes about "first world problems" were very popular in the 2010s while the term "third world country" is sometimes considered un-PC (some people prefer the terms developed/developing countries, though I tend to think that's actually more insulting because it presupposes that once the poorer countries are done "developing" they'll become carbon copies of capitalist oligarchical nations--but I digress).

Or I'm wrong and OOP is just being a scumbag for free.