I'm not a liberal. I've been a communist involved the best I can in the class struggle for 12+ years. Every leftist you don't like isn't automatically a liberal.
I do think religions are problematic, but I don't think Buddhism is more of a problem than Abrahamic religions. The dharma has helped me even if I don't subscribe to the more spiritual aspects of the religion. That isn't to say it isn't a problem. The way it was used in Tibet and Southeast Asia to maintain political power is a great example of how much of a shitshow the religion is.
I don't think the influence of Buddhism is to blame for Japan's worst problems. The structure of their political system, adherence to authority, and a history of extreme patriarchy have more relevance. Hell, Shintoism and its obsession with the Imperial family is much more of a problem if we are focusing on religion in Japan. Of course even Shinto as a whole can't be blamed for that as it isn't uniform in its practices across the country.