Дуракам счету нет

Fools are numerous. See На наш век дураков хватит (H)

Cf:

A fool is born every minute (Am.). Fools go in crowds (Am., Br.). If all fools wore feathers (white caps), we should seem a flock of geese (Br.). If all fools wore white caps, we'd all look like geese (Am.). If every fool held a bauble, fuel would be dear (Br.). There is one born every minute (Br.). There's a sucker born every minute (Am., Br.). The world is full of fools (Am., Br.)