According to Osho, Krishna does call birth a bondage—but only as the chain forged by attachment to the fruits of action. Freedom doesn’t mean renouncing action, but dropping result-clinging and acting spontaneously in the present. Liberation then flowers as a consequence, not as a coveted reward; if you make moksha a goal, it remains another “fruit” and the bondage continues.
Birth feels like a trap only when we chase rewards; stop clinging to results and just do what needs doing now, and freedom happens by itself.