During the Russian Revolution, when the Mensheviks and Trudoviks and SRs and even revisionists within the Bolsheviks turned against the revolution, Anarchists stood with us, at least until Krondstadt. Anarchists are not all bad and I've met many intelligent, mature Anarchists locally.

Anarchism is not necessarily a stupider ideology than most others, it's just an easy entry point due to its focus on Individualism - Anarchists can be very good, but stupid people are more likely to identify as Anarchists than anything else on the left.