When it comes to national sovereignty-type issues, "back" is rather relative. Being a topic of conversation (especially by folks venting dissatisfaction with things) is a different realm to being a real (not performative) issue for most elected leaders, which is a different realm to seriously voting on whether to join or secede, is a different realm to actually being successful - long-term - in a new sovereignty situation.
When it comes to national sovereignty-type issues, "back" is rather relative. Being a topic of conversation (especially by folks venting dissatisfaction with things) is a different realm to being a real (not performative) issue for most elected leaders, which is a different realm to seriously voting on whether to join or secede, is a different realm to actually being successful - long-term - in a new sovereignty situation.