Truly crying for others will bring moshiach. Mashiach waits by entrance of Rome (Sanhedrin 98a) undoing one bandage at a time. Baseless hatred means lashon hara. Red string on rotting tree. Raise Moshe Rabbeinu in a palace means it would difficult to become the redeemer. Same for shevet Levi (by crying they merited singing in Beis Hamikdash). Karpas Yachatz at Seder. Tehillim 68:7. Other shevatim did not resent Shevet Levi