Kinda. The establishment liberals are trying to discipline the social democrats and prevent them from gaining in influence. However, the social democrats are, at the moment, not actually in favor of establishing socialism nor doing what is required to do so. It's liberal infighting.

The more millitent rank and file of the DSA is largely what's pushing this grassroots support in this wave, but without a correct analysis of the structure and role of the capitalist state the DSA's reformist strategy is a dead-end.