The Democratic base is strongly moderate, despite what you read and see in right-wing media. There are Democratic senators from West Virginia and Montana, for example. And two from Arizona. And now Georgia.
The far left legislators are greatly outnumbered by the moderates. President Biden is a moderate.
Despite the shrill warnings from right-wing propaganda outlets, Democratic policies will reflect their moderate base.
So do the vast majority of Democrats. So does President Biden.
Nobody is proposing to do so. What destroys economies is refusing to adapt to modern times. For example, President Obama's 2009 stimulus package included billions for loans to early-stage solar energy companies that launched the industry. There are now thirty-five viable utility-scale, privately funded solar companies—up from zero a decade ago. (And please keep the knee-jerk "but Solyndra!!! rebuttal to yourself--it was one failure among so many successes that the loan program made a profit for taxpayers.)
Rather than being dangerous to the economy, Democratic policies generally are
more supportive of long-term economic growth than Republican policies, as
historic comparisons continue to show, year after year.