Martin wouldn't have won without Malcolm. And he wouldn't have won if he spent all his time yelling at Malcom to calm down instead of fighting for civil rights.
You can say you want slow incremental change because you think we have plenty of time. (Most will disagree with you tho, cuz you're wrong)
But if you spend your time fighting against progress rather than making sure at least some progress is made...
We're going to spend more time backsliding than slowly walking up hill.
Go up the hill too fast and you just get there a little early, backslide too much and you can fall all the way to the bottom, break your leg, and never be able to climb back up.
I read this post as being about Malcolm. He kept the pressure going his entire life. He always kept organizing and kept the pressure going. Really I think what this is encouraging people to do is to look more towards Malcolm X than to Marcus Garvey. Look for the true anarchists, not for the people who want to redo capitalism but this time their group is on top, because that shits how you get Israel genociding Palestine
If we're being charitable, we can assume they're talking about they're talking about liberals doing bandaid fixes to keep the orphan-crushing machine running and fascists who are angry the machine isn't benefiting them as much.