The point is that doing nothing is still better than doing the wrong thing. I would also say that neolib dems are not the end goal. The increase in DSA and WFP candidates is a step in the right direction that needs support to continue.
The civil/societal improvements of any period in history do require a fight but also legislation. The civil rights movements of the 1960s did not just have people marching in the streets or threats of fire being met with fire it also had legislators who had prior been opposing or ineffective that were able to work with newer more radical legislators. DSA and non-AIPAC candidates are those more radical ones and some (not all) of the dems are the opposing/ineffectives that can work with them.
Tldr; Its a lot easier to fight for better than simply for survival.