I believe that God loves perfectly. That is not synonymous with "all-loving". The Bible makes it plain that God loves those whom He desires to love, and hates those whom He desires to hate. In fact, when He hates, He hates perfectly.
A naughty person, a wicked man, walketh with a froward mouth. He winketh with his eyes, he speaketh with his feet, he teacheth with his fingers; Frowardness is in his heart, he deviseth mischief continually; he soweth discord. Therefore shall his calamity come suddenly; suddenly shall he be broken without remedy. These six things doth the LORD hate: yea, seven are an abomination unto him: A proud look, a lying tongue, and hands that shed innocent blood, An heart that deviseth wicked imaginations, feet that be swift in running to mischief, A false witness that speaketh lies, and he that soweth discord among brethren. - Proverbs 6:12-19
Do you believe that "God is Love?"