Of course he was. And I base this on purely practical considerations, not just psychological ones. His involvement in the 1848 revolutions led to exile and the hampering of his career, whatever may have been the justice of his cause. And the difficulties he made for King Ludwig II resulted in significantly less finiancial support overall than he would otherwise have received, forcing him into exhausting concert tours to raise money for Bayreuthand The Ring. The extra stress may have had an effect on his heart disease and shortened his life. Repeatedly tripping oneself up is certainly self-destructive.