NASCAR's popularity has been on a decline ever since WCW Motorsports went under
Speed Network started when NASCAR was popular. Now that it's not, Fox bought the channel and turned it from 24/7 cars to a channel that airs 6 hour long UFC fights which turns jaded wrestling fans into MMA fans. Those former wrestling fans stop watching WWE cause it's not real. WWE loses business and has to bring back washed up wrestlers like The Rock back just to get people to watch.
Vince killed WWE by ending WCW Motorsports.
FUUUUU JBL called Christian a rat on Smackdown
Vince knows!
I'm one of these WWE to MMA fans. LOVE me some UFC, DVR and FF through most of WWE's stuff besides NXT.