So why not be a Litvack then?

So if what prevails today is not Litvishism but rather Yeshivism, if true Litvacks honor all the Gemara, including teach your son a trade, 18 to the chupah,  study what the heart desires, find a shiduch for an orphan, etc, then why not be a Litvack? If true Litvacks are not poisonous, why not be one?

It's a matter of style. Litvacks even traditionally are more focused on nigleh and analytics, less community oriented than Chassidim, less interested in the mystical and the tzadik. You can still be a good eved Hashem that way, and if it's your derech, then do it. But if you want more community and mysticism and connection with the tzadik, then Chassidus would be better. If you want more connection with humanity, if you find Hashem in nature and science, then you might be more of a Hirschian. Those are all valid derachim. 

Yeshivism, in my opinion, you can do it if you want, but it's not Litvishism, even though the Yeshivists claim to be the heirs of Litvishism. They are imposters in that regard. They are doing something else. And maybe it works for many people. That's not for me to judge. But call it what it is. And don't insist that it's the true derech because it's the least true derech.