There's lots of things wrong with touring car but it's not dead. It does need a serious overhaul though along with most of the other racing classes.
Problem one is manufacturers cater to the top level drivers. This is a hobby and for fun. This isn't nascar or indy car racing. THESE ARE WELL BUILT TOY CARS! Club level racing should be priority number one.
The second problem is roar. It's obvious that they just don't get it.
Roar and manufactures combine to drive costs up to insane levels. This keeps kids and alot of other people out of the loop and what you end up with is a bunch of dbags who spent way too much on their toy car who wanna try to fight you bc you didn't get out their way and scrubbed .5 seconds from their lap time.
This is all obviously my opinion and I've met alot of nice people at tracks but there's always those other guys too.