Lance definitely thought the two groups were massively ideologically different. The Centurions were in the right. The Syndicate wanted to kill all humans even if they didn't outwardly say it. The Syndicate might as well be an army of demons as far as Lance is concerned. His sister, he wanted her to come back. But he kind of figured that would be impossible. Odie and he were very different but they had one trait in common -- stubbornness.
He shook his head at Hana saying they could still talk to her, "It's complicated. My mom and dad and her they don't get along. They love each other but stubbornness runs in our genes." He gave a humorless smile. "She always made bad, reckless choices."
He just wanted her to be safe. That's all. And he believed the Syndicate would throw her under the bus if that suited their interests. He looked to Hana, holding back a smile, "Hey, thanks for that."