I've, personally, never like the 'tits, fanny and...whoever' song-simply because I've never been into tits and fanny!
But seriously, just because it's 'laddish'; 'just having a laugh at the game'; and so on, doesn't make it the right thing to sing. But you cannot just tell people to stop singing it...without an alternative really. And that's where subtle changes like 'bear baiting' or 'pie & mash'come in...
Though how long before the animal rights or vegetarian brigade get on your case is another story...
On the subject of the 'tits and fanny' version...without a doubt this WILL be heard of again, especially as our crowds, hopefully, continue to grow. People won't realise that it shouldn't be sung, and it's an old, catchy, traditional football song. It's down to us all to repeat it if & when it's aired with the 'bear baiting' line, to 'educate' others, for lack of a better word.