Is it possible to build a Western Left anymore?

I’m an American Marxist-Leninist, so I know that it is materially possible for a privileged westerner to come around. But a few of us being able to unlearn the constant propaganda and overcome the horrific state of American education and the political climate isn’t enough.

The Overton window is so far to the right here in the United States that most don’t entertain the idea of a future beyond capitalism being possible or necessary. Even when Americans see this wretched system for what it is, they’d sooner turn to nihilism or accept whatever additional crumbs are thrown.

I know it’s important to maintain revolutionary optimism and always strive to be part of the solution, but it feels like an extra big battle to build a proper revolutionary left.