Is it just his opinion? Cause it is kinda depressing.
From "Lessons in Tanya":
As true definitive terms, tzaddik and rasha describe the quality of the good or evil in one’s soul. Viewed in this perspective the person described above is classified as a rasha even after he repents and is pardoned, for he still retains his predisposition toward sin, and his animal soul still tends to dominate him.
This catagorization puts many fellow Jews I know in the Rasha catagory. And the fact that any mitzvah you do goes to Kelipah... So doing mitzvos will not hasten the redemption.
And Why does Chabad do mitzvos with non-religious people? (Rishoi'm?) These mitzvos are just strengthening Kelipah!
On the contrary, through their observance of the Torah and its mitzvos, they are temporarily adding power to the kelipos, as the Alter Rebbe rules in Hilchos Talmud Torah 4:3. See also Iggeres HaTeshuvah, ch. 6, and Kuntres U'Mayon, maamar 7.