Fruits of Our Labourers?

There seems to be serious concern that some soft British fruit might well go unpicked because of difficulties in obtaining the usual seasonal migrant workers from the continent (https://www.theguardian.com/business/2018/may/27/uk-farmers-strawberries-migrant-workers-crisis). If this occurs on a large scale, it would result in farmers ceasing to grow such crops and the country having to import yet more fruit. This is likely to increase the 'carbon footprint' of foods we are actively trying to encourage people to eat to benefit their health.