The Mekor of chasidim going to the mikveh every day is from the New Testament. They follow the custom of John the Baptist, who was a stickler for Taharah. He was so makpid that he didn't marry because of constant tumas keri, nor eat did he eat meat being choshesh the shchita may have been nveilah and thus metamei. He ate only locusts and honey.
I would prefer for this Rabbi to speak about those inyonim which bring Achdus among Klal Yisroel. Both the Chassidic world and the non Chassidic world have their part to play in HaShem’s Plan Neither is superior or the opposite to the other. There is no place for smugness or oneupmanship We all learn Torah and fulfill Mitzvos preparing for the arrival of Moshiach Tzidkanu.
כתוב בפסוק והתקשותם והייתם קדושים כי קדוש אני וכו׳ איך להיות כהקב״ה? מה רחים אף אתה רחום, מה הוא חנון אף אתה חנון, ואיתה בגמרא משעה שעלה משה לקבל הלוחת הי׳ מתכסה בענן וענן זה הי׳ בו מים שמשה רבינו טבל בו לפני שמקבל הלוחות שנתן לו הקב״ה.
Rav yisroel Reisman: should a man go to the Mikva every day ?