If you feel that your motives for talking about your views, is honestly to help these students, then you're following your heart. Sometimes, we are put in positions that might be uncomfortable, but that doesn't mean we should hide from spreading truth. I wouldn't make it the focus of your class, but I see nothing wrong with having healthy debates and dialoging with your students, as they wish to do.
It's nice to see that some teachers are interested in promoting critical thinking skills, as yourself.
It's nice to see that some teachers are interested in promoting critical thinking skills, as yourself.