Right. To the end, he remained a socialist. Probably the result of his early coffee house days in pre-WWI Europe. Somewhat excusable then, because so many Europeans were (and are) ignorant about such things. Alas, he never seems to have bothered to learn about the economic system of his adoped country, and as a result, zillions of idiots imagine that socialism is the "intellectual" position to take when in fact, it's the moronic position.
So he was wrong when he said that his cosmological constant was his biggest blunder. Rather, it was his endorsement of socialism.
Granted, his political views were misguided at best, but he was still a patriotic citizen, unlike some of the other members of the scientific community, who decided to either sell or mortgage their souls to the Evil Empire.
If Einstein has had a negative influence on anything, it's that the physics community since his time has teneded to lean left on most issues, largely because they have looked up to him on everything else. That and the Oppenheimer case has led a lot of otherwise bright minds to advocate some of the most dunderheaded policy positions imaginable.