I've wondered this aswell. Not just memories, but even dreams amaze me. Most of my dreams take me to a certain home i lived in my youth for a few years. It wasn't the longest duration out of all the places ive lived in, but it's where most of my dreams get based at.
Perhaps it's an impression that's left in our brains which is beyond our control. The brain finds that important for whatever reason and keeps bringing it up.
I think what frustrates you is that it's apolitical and focused on Sikhi not nationalism of your flavor.
It's not like you started this thread on Simran.
This is how you started...
Grooming of Hindu and sikh girls in UK by muslim fanatics, does it still happen?
What a loaded question bro. Where you been? Lol.