No I do not agree the Clarence song is bad taste.
That's not for me to judge.
But in my opinion it is unfunny - merely a shit comic song...

Apart from that we more than probably agree on the value of humour
as a vehicle for polemical ideas...

Satire is an artform...

But neither am I a snob appalled at the 'lowest common denominator'...

Your demonised example Bernard Manning was actually a very funny pro comedian.
Though we may dislike his politics, much of his material, and a lot of the audience he appealed to,
he was a master of his craft...