Prophet Hud - 11:113 Do not sympathize with the wrongdoers and do not support them, lest the Fire touch you. You have no friends except Allah, then you will not be helped.
If we sympathize with the oppressors:
The Family Of Imran/3:28 Let not the believers leave the believers and take the disbelievers as friends. Whoever does that has nothing to do with Allah. Except when you fear them. Allah warns you about Himself. The return is to Allah.

The Repentance/9:23 O you who believe, do not take your parents and your brothers as friends if they prefer disbelief to faith. Whoever takes them as friends, they are wrongdoers.

The Pleading Woman/58:22 You will not see a people who believe in Allah and His messenger and the Last Day taking as friends those who oppose Allah and His messenger. Even if they are their own mothers and fathers and children and sons and sons and brothers and relatives. He has written faith in their hearts and supported them with a revelation from Himself. He will admit them into Gardens in which rivers flow, where they will abide forever. Allah is pleased with them and they are pleased with Him. They are the party of Allah. Surely, the party of Allah will win.

The Woman Who Is Examined/60:9 But Allah forbids you to be friends only with those who fight you in the cause of religion and drive you out of your homes and help you to be driven out. Those who take them as friends are wrongdoers.