That phrase (love the sinner…) has nothing to do with Judaism. The following do:
Tanach, Sefer Y’sha’ya:
1:28
But the destruction of the transgressors and the sinners shall be together, and they that forsake the Lord shall be consumed.
13:9
Behold, the day of the Lord cometh, cruel, and full of wrath and fierce anger; to make the earth a desolation, and to destroy the sinners out of it.
33:14
The sinners in Zion are afraid; trembling hath seized the ungodly: ”Who among us shall dwel with the devouring fire? Who among us shall dwell with everlasting burnings?”
65:20
There sall be no more thence an infant of days, nor an old man, that hath not filled his days; for the youngest shall die a hundred years old, and the siner being a hundred years old shall be accursed.