This would be happening without Brexit. The decline in car buying; mobile phone buying and so much more; as well as debt stress, are all real phenomena. What they suggest is that we have an economy that is realising that its practices are unsustainable, come what may. A debt crisis is likely, and with it bank and pension fund stress on very large scale, which could trigger recession in its own right.
Eighth, the risk of the suspension of normal government in the UK is high to deal with post-Brexit chaos.
Apparently car sales back down to the depths of 2007 mean we’re in for fascism in the UK.
Note that 2007 is pre-recession….