It's an interesting article and you are not the only one to go through this phase. It has, however, nothing to do with socialism. It's an identity problem.
Many second and third-generation immigrants in any country feel the need to question where they are from and to find out about it. The truth is that they live in a country that "is not theirs", meaning by that that a recent ancestor of them immigrated, which may lead to identity problems. They grow up in a place that is not the place "they are from".
How do you reconcile your identity with the place you were born at, that is in fact not your place of origin? This question is part of the acculturation problem, which means that one cannot identify with any cultures (neither the US culture in your case nor the Vietnamese culture, because you never grew up there).
When one is split from one's country of origin, one tends to become particularly "nationalist" about their country. They feel closer to their country of origin than the people that actually live there. They know its history and politics better because they need to compensate for the fact that they are not living there.
As such, it is Poles living abroad that vote for nationalist parties in Poland, the Turks living abroad that vote for nationalist parties in Turkey, and the Hungarians living abroad that vote for nationalist parties in Hungary, etc, etc.
They do so because they need to attach their identity to something, in this case, their country, because they are living in a country that is not theirs.
As such, in your case, you're not becoming more socialist. You're becoming nationalist. You feel close to Ho Chi Minh because it is a nationalist symbol of the country where you are from, and you wish to feel closer to it as it gives you a sense of identity. Similarly to the Poles feeling close to the nationalist parties in Poland, you feel close to the political figure that excites nationalism - Ho Chi Minh.
Had Ho Chi Minh been a capitalist revolutionary that had overthrown a communist regime, you would have written "How I am becoming more and more capitalist", and not the other way around.
I encourage you to go to Vietnam and spend some time there. Talk to people that lived the war, tell them about your socialist desires, explore the country where you are from.
You'll see soon enough that your problem is not a political problem. It's an identity paradox.
