Samsara, by which I take you to mean being reborn over and over again in this life, in that life, and so on - does this actually cause you suffering? No - the thought of it does -- the thought "I will be reborn, alas". This is contact, condition for (unpleasant) feeling, & ultimately condition for dukkha. This suffering you experience on account of personality-view is precisely the suffering addressed by the Dhamma.