AITAH for not being uncomfortable at the holocaust museum? TW

Me (15frm) went to DC with my family to go to the holocaust museum. When we finished and went back to the car my older brother (19m) my older brother called me disgusting for not crying, being uncomfortable, or showing any emotion while watching a video at the museum. The video is real naked dead body’s of Jewish people get thrown and dragged by nazis to get buried and I did really have a reaction. I didn’t look happy or sad just looked like I was watching a random video for school of something. I’m starting to think I was disrespectful and gross for not reacting but idk at this point. So Reddit AITAH?

For more context my family is Jewish and German idk if this adds to anything or is important but idk