That was the point - working classes are most likely to smoke. The working classes would also be less likely to acquire covid initially due to not mixing predominantly in the middle class circles through which covid originally entered the UK en masse. Therefore, the correlation seen is probably more to do with the stratification of British society than due to any protective value of smoking.
Oh what bobbins!
Who do you think serves the middle classes their drinks and meals in the hotels and bars? Who collects their used glasses and plates? Who makes their beds and cleans their toilets in the hotel? Who pats them down at airport security? Who handles their baggage?
And the skiers returned to London and got on the same public transport system as every other fucker regardless of class and then proceeded to spread the virus all around the country, very likely infecting working class people with low paid service shitjobs all along the route.
Then they get home. Who cleans their house? Who threads their eyebrows? Who cuts their hair? Who waxes their fannies?
Has it passed you by how many bus drivers have died? How many care workers?
Working class people really are invisible to some, aren't they?
I'd be very interested in seeing a socioeconomic breakdown of covid cases and deaths. I bet you half a bogroll the numbers are much higher among poor people in overcrowded housing, doing low waged, low security work with no option of WFH or furlough, than among those who fucked off out of London to their second homes at the first sniff of trouble.