Rising Eu drivers would be evidence that not as many as some would like to claim left the UK because of freedom of movement limitations, otherwise they would have gone back and lost their right to settle. The fact that they opted for settled status and re-entered the profession was for other economic reasons. they, at the point of re-entering the industry, had already opted to stay in the UK.
IR35 changes caused drivers of all stripes to call it a day. It's not confusing Bear, not in the least, but you already knew that, right?
We have people wanting to blame every thing that goes wrong with a crap government in charge, on brexit. Then claiming that people are ignoring the evidence of brexit, which I find quite ironic. Those shouting loudest and most don't really bother with much evidence, fuel shortages, timber shortages hike in energy prices, all brexit. Nah, not really, they are tory mismanagement issues. Oh I see now why, at least one poster wants to blame brexit!