Transcript
A threads post saying "There has never been another nation ever that has existed much beyond 250 years. Not a single one. America's 250th year is 2025. The next 4 years are gonna be pretty interesting considering everything that's already been said." It has a reply saying "My local pub is older than your country".
There's a difference between turning 250 and the 250th year, the latter being what was referenced. One year after a baby is born, they "turn one" for their first birthday; but the moment they're born, it's their first year since we don't start counts on zero (yes, I know, unless you're a computer—insert canned laughter).
You're right that America would turn 250 in 2026, but OP's meme is correct in that they started the count on one, inclusively.