The American left is furious at Biden for the same reason we’re angry at pretty much any President’s foreign policy. We’ve opposed most of the interventions and support for dictators that presidents in the latter half of the twentieth century up to today have engaged in. But we have never been the majority, and haven’t had the power to stop them. It’s important to remember that about a third of the US is composed or pretty reasonable, pro-peace social democrats. The problem is that another third are “moderates” that are okay with empire as long as we pretend we’re being nice, and the last third are maniacal religious fascists.