Abolition would have come faster without independence
The main reason the revolution was a mistake is that the British Empire, in all likelihood, would have abolished slavery earlier than the US did, and with less bloodshed.
Independence was bad for Native Americans
Starting with the Proclamation of 1763, the British colonial government placed firm limits on westward settlement in the United States. It wasn’t motivated by an altruistic desire to keep American Indians from being subjugated or anything; it just wanted to avoid border conflicts.
America would have a better system of government if we’d stuck with Britain
Honestly, I think earlier abolition alone is enough to make the case against the revolution, and it combined with less-horrible treatment of American Indians is more than enough. But it’s worth taking a second to praise a less important but still significant consequence of the US sticking with Britain: we would’ve, in all likelihood, become a parliamentary democracy rather than a presidential one.
That last one takes the real cake for me.
He forgets that in the British Rule he would not have true Freedom of Speech or Press.
Depending on who is in power his freedom of speech could be criminal.