@JOG, I'll think you'll find that 99.9% of the locals in the ski areas will be welcoming with open arms, any Brits making the trip over next ski season. They've had a bad couple of years financially, and aren't stupid enough to scare away potential customers, and are intelligent enough to know most Brits didn't vote for Brexshit and are making the trip over the channel because they love our continental neighbours.
Back to the OP- I've used full winters and all seasons, and carry chains and socks, and have only once resorted to the socks on a icy sloping car park. Get a TAG for the autoroutes, doesn't save you money, but saves time at the tolls.