On the Day of Judgment, Issa (Jesus) عليه السلام will disassociate himself from those who declared him a god or son of god, and he will condemn their claims about him.Allah’s ﷻ says in Surat Al-Maidah:
ما قُلتُ لَهُم إِلّا ما أَمَرتَني بِهِ أَنِ اعبُدُوا اللَّهَ رَبّي وَرَبَّكُم وَكُنتُ عَلَيهِم شَهيدًا ما دُمتُ فيهِم فَلَمّا تَوَفَّيتَني كُنتَ أَنتَ الرَّقيبَ عَلَيهِم وَأَنتَ عَلى كُلِّ شَيءٍ شَهيدٌ
“I (Jesus) only told them what You commanded me to (tell them and that is to) worship Allah, my Lord and your Lord. And I was a witness over them as long as I was among them; but when You took me up, You were the Observer over them, and You are, over all things, Witness.
On that grand day, Jesus عليه السلام will disassociate himself from the disbelievers that worshiped him, therefore, the believer must also disassociate himself from from the Mushrkeen (polytheists) and all their celebrations.