it appears I’ve opened the floodgates
You don't need to accept all the points or even the overall point of the book. The primary reason most of us want people to read and understand it in detail is to get people to focus on the American struggle as more of a strategic struggle as part of a wider whole. The very concept that revolution in the heartland of capitalism, the most valuable and important, the core of the beast, would ever be possible -- it is extremely unrealistic. That however does not mean that struggle, pressure and anti-imperialist action within it is not incredibly useful in the wider worldwide fight.
Our victories -- practically all of our victories -- occur in the periphery, the so-called "third world".
We want American leftists to have a greater understand of this, of the impact on the global struggle that their activities can have. Anti-imperialism is the single most important effort of the world today because anti-imperialist successes have genuinely resulted in the emancipation of countries from imperial rule. It has freed millions and millions of people.
You don't have to accept the concept that revolution is never possible in the US. But you should take away from it the points comparing the minorities of America and that of the struggles of the periphery, and you should take away from it a far greater understand of the need to be anti-imperialist. Every country we free in the world is a tentacle of the beast cut off, if we cut off enough tentacles we may one day be able to kill the beast once and for all.
You don't have to subscribe to this argument for third-worldism to understand it has incredible value. It is an argument that promotes the radical acceptance of anti-imperialism, this is why it is pushed so much.