Various posters have laid out the models by which poverty echoes as a wave through time, and does so in such a way as to do continual injury to the society it happens in. It outlines ways to cancel those waves that do this injury.
"Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, and is waiting for it." - Terry Pratchett
I love Pratchett; he was funny and a brilliant writer, and what he said is very clever; but what he said isn't true. Light really is faster than anything. The darkness was there first and is waiting for the light, yes; but it's not because dark is faster. It's because dark was there all along. Dark didn't get there; dark started out there. Dark is the default condition of the universe. Darkness doesn't need to travel in order to be everywhere.
Likewise, it's not quite accurate to say poverty echoes as a wave through time. Poverty was there all along. Poverty is the default condition of Homo sapiens.
Wealth echoes as a wave through time. When there's a background of lots of wealth and it's echoing through time, sure, the gaps between wealth may
look like they're echoing through time, just as the gaps in a transmission in an optical fiber may look like darkness propagating from one end to the other. But it's an illusion. Darkness doesn't get there. And we EEs all make believe that P-doped silicon has these positive charge carriers called "holes" that move along the crystal lattice, because it's convenient to think about it that way; but we know it's just a figure of speech. It's not really one hole taking an extended trip; it's just one negatively charged electron after another taking a short step, filling in the old gap and leaving a new gap where the electron used to be.
This isn't a quibble over semantics. It makes a real difference. Sure, one can think of poverty echoing as a wave through time, but the reasonable takeaway from that metaphor is that the society it happens in exhibits systemic
classism. It isn't racial. When you're poor, poverty is a problem for you
regardless of what color you are. Calling that situation "racism" is not the honest reporting of fact it pretends to be; it's propaganda.
And there's a reason for the propaganda. Self-styled reformers and revolutionaries have been railing for centuries against wealth echoing as a wave through time. Once, they railed against it by appealing to a metaphysical accounting convention, which they claimed proved wealth wavers were parasites; but that lost its persuasive power when economists learned to avoid metaphysics. Then they railed against it by telling workers that stopping wealth waves from echoing would make them rich; but that lost its persuasive power once enough workers who took the bait had grown even poorer. So at this point there is no case remaining against wealth wave echoing that still has any appeal to anyone who thinks critically. So the railers need a way to shut off critical thought in their listeners. Enter the propaganda -- enter "racism". We have become so rightly accustomed to recognizing racism as indefensible that if propagandists manage to smear the tar of racism onto whatever they're railing against, plenty of listeners will regard the controversy as settled and stop applying critical thought to it.
So let us abandon talk of "systemic racism" until the CRT-mongers can produce a non-propaganda justification for employing such thought-suppressing language. What they are demanding an end to is actually systemic classism. Still, if systemic classism is doing a continual injury to the society it happens in, and if they can outline ways to cancel this injury, then we should hear them out regardless of what we think of their deceptive propaganda.
So what have they got? Well, they've got "poverty echoes as a wave through time", and they've got "cancel those waves". But as discussed above, actually it's wealth that echoes as a wave through time, not poverty. And canceling wealth waves is a well-trodden path. We already know where it leads: it leads to canceling wealth. This is not rocket science -- most wealth only exists in the first place because some wealth wave passed through. Now, if the CRT propagandists can show us a way to eliminate systemic classism that can make everyone rich, that is well and good; but if their plan to eliminate systemic classism is just going to return Homo sapiens to its default condition in the absence of waving wealth, then they are the ones who will be doing continual injury to every society CRT happens in.