Martin Luther King Jr. cared about long-term moral issues and direct action rather than getting caught up in short-term electoral realpolitik. Lydon Johnson asked him to tone it down and wait until after the 1964 election against the much more racist candidate Barry Goldwater. LBJ promised him civil rights after the election, but MLK Jr. told him to suck it. He then refused to testify in congress in favor of LBJ's civil rights bill because he was busy organizing marches in Selma.

~~If you think all people who attack Joe Biden for enabling genocide are pro-establishment, you must also believe Martin Luther King Jr. hated civil rights and loved racism.~~ (Based on who you were replying to and your tone, I misread who you meant by the establishment. Oops.)

The majority of Solarpunks are similar to King, and we're in the same position of not having the political clout to ignore the shallow understanding from people of good will he had to deal with in his day. "Why direct action, why sit-ins, marches, and so forth? Isn't negotiation a better path?" and "our acts are untimely" are still questions we have to answer repeatedly. But excluding liberals from the SLRPNK server only shuts down lines of communication that can move us all forward.