The LDP is shifting to a more moderate position because they are really a multi faction party and they need internal cooperation to maintain their rule. What’s happening is the country is slowly becoming less nationalist again, but with an increase in privatization pushes from the innovation party. The CDP is viewed as useless, which to be fair they are and the Communists are all old boomers who are dying off. Reiwa is an interesting party but they are too small to have any real influence but they would be your socialism for people below the age of 70 or not 35-50 year old men who lost their job in the bubble crash.