The thing is, "going left" almost exclusively refers to social/gender issues and to tweets, statements, and other non-policy related shit. So "going further left" means more tranny stuff, more tweets about racial representation, more black Little Mermaids.
Economic, environmental, foreign policy issues simply don't exist. THAT is the real failure of the left. And a tremendous victory of the right because it keeps the attention away from policy (their weakness) and squarely on cultural, symbolic shit (huge strength).
How about the argument that going further left by pushing hard for universal healthcare, $15 minimum wage, increased taxes on billionaires, increasing housing supply to alleviate the housing crisis, a reduction of the military budget, free or reduced college tuition, going away from fossil fuels, stopping the genocide in Gaza, etc., is going to draw people in?