Labour were/are social chauvinists who oversaw both radical and meek reforms to the capitalist system they've been tasked with overseeing over the last century. Their charter's ambition never manifested because they are ardent supporters of bourgeois democracy, and continuously fail to overthrow the basic elements of the political system they operate in to stop swings to outright reactionaries like the Tories.

Abdul El-Sayed: drew immense boots-on-the-ground support and resources from DSA activists. Despite benefiting from their infrastructure, El-Sayed openly walked back any association with the socialist label, explicitly stating to the press: “I am not a socialist, just a capitalist who understands how capitalism works.”

Bernie Sanders: While Sanders popularized the term "democratic socialist" and the DSA heavily allocated organizational power to canvass for his presidential runs, Sanders has explicitly defined his ideology as akin to Nordic social democracy. He maintains that he supports a regulated market economy with a robust social safety net rather than the complete abolition of capitalism.

That's just the 2 biggest/most recent, the DSA has done this dozens of times. They endorse and back every "progressive" with resources from their organization and then those candidates go on to become centrist careerists. If their goal is "Democratic socialism", why do they promote social democrats and Liberals? Why do they repeatedly spend their resources on political campaigns of people they have no control over whatsoever?