Seforno: He meant that Yakov' decision to go home was no reason to steal his gods.

Oznayim la'Torah: He would not have minded so much had he stolen his gods whilst he was still living there - on the contrary, he would have been so pleased with him for adopting his style of worship that he might have even given them to him as a gift. But now that he swtole them after deciding to leave for his father's house, where he would surely continue to believe in G-d, on what grounds did he steal them?

Tosfos ha'Shalem (1, citing R. Efrayim): You went during the day and at night. ¹ You are covered with silver on the inside and outside, and you are eager to bring it to your father's house.