See, the joke is that modern conservatives would have supported the British control of the American colonies.
Which holds significant merit as during the war for independence, the most conservative families were Monarchists which insisted we return to British rule.
Several of those Monarchist families today make significant parts of the republican leadership.
That's the point boss. These people call themselves patriots and say what is in the word bubbles, the folks in the boat were actual patriots and wouldn't say that. They're literally pointing out the cognitive dissonance of what these idiots say and what they believe themselves to be.
It's a bullshit painting based largely on myth and misunderstanding of history. The dudes on that boat were ready to kill Washington and Washington had a simple choice, lead a fight or die by his men's hands and hope they don't have the wish to kill him afterwards or that there wouldn't be enough of them left to matter.
If I stub my toe and say my foot is ruined I'm being dramatic, if I say I'm a war hero when in reality my military career is mostly huge flops then I'm just a liar.
No one actually thinks the depicted crossing happened that way, with the top officer of the army leading the charge in a rowboat.
Washington was not a "war hero" per se, and indeed had some big losses. But to suggest his military career was "mostly huge flops" is silly. He is roundly regarded as a highly successful general and strategist with an acknowledged average tactical record. On the balance there's no way you can call him a flop general.
There are really good books on this topic that strongly investigate his career and are not fluff/charity pieces.
I don't think the person choosing the image for the meme cared, and just wanted a composition of historical founding father significance and enough people for the speech bubbles.
You are letting your accurate knowledge of history get in the way of appreciating a political shitpost. Consider that.