Reply To: How come all frum Jews today aren’t Chassidic?

LB:
Just to clarify, Chassidim did not invent the concept of serving Hashem with simcha. David HaMelech writes in Tehilim: Ivdu es Hashem bi’simcha. But he also writes Ivdu es Hashem bi’yirah. As with everything else in life, we must maintain the proper balance of simcha and yira in our avodas Hashem. Even a hard-core litvak will tell you that.

(Btw, both Chabad and Satmar are normally referred to as being Chassidism, even if they have very different outlooks on the world.)