Rosh Chodash Sivan arrival to Har Sinai unified ויחן שם ישאאל – כאיש אחד בלב אחד. The Ben Ish Chai says נגד ההר iif you take the letters around הר we get ו, ש, ד, ק makes קדוש holy, such that unitty brings to holiness. Holiness brings to the redemption by replacing ק, ש by two ר, getting דרור freedom.
First we must unite ourselves by not being אחד בפה ואחד בלב speaking differently than what is in our heart, being fake, then we can become one, united with others.
Rosh Chodash Sivan reminds us of unity to accept the Torah. The Beis Shamai’s arguing was instrumental in the Beis Hilel finding the truth by seeing an opposite view and thereby eliminating tunnel vision as explained in Pirkei Avos by the Midrash Shmuel on the mishna indicating that a machlokas lashem shomayim stands.
Lets all start loving each other and all our brothers and sisters in klal yisroel and remove this Sinas chinam amongst all of us and then Hashem can bring us closer to the coming of Mashiach already bkarov