GrannyGravy - the OP thinks it is better to let others give their opinion without the cue of the OP - and also been very busy organising a concert for tomorrow night.
I think growstuff above is right. I saw a video which prompted this thread- a group of ult-right, covered in English flags and placards, attempting to sing it, but not able to as they did not know the words, nor the music - and many looking as though they had a few screws and bits and pieces missing- not edifying.
I loved singing the song at the end of Proms, live or watching on TV - it is a great tune indeed. But the world has changed, and personally, in the current context, it would make sense to tone it down a tad- and accept it is just insensitive right now.
The inability to re-assess and adapt, has caused the end of many civilisations in the past.