Was I fighting it? I was stating my opinion that it's not necessary. I think as a general rule more classes just to have a class is a poor design decision so if a class is added it should fill some niche that can't already be filled.Of course you don't need it! You don't need literally anything but the PHB to play D&D! That clearly is not the point. If you're satisfied with no new options ever, that's fine and that's your prerogative, but you have no basis whatsoever for fighting expansion of content for players who want it.
I don't want to go back to previous edition's proliferation of classes. It was confusing and diluted what a class meant. It led to issues with balance, identity and problems with multi classing.