He wants to punish France for the ban last year into Calais, no other reason to keep France on Amber + (but no other EU country) esp when you let unvaccinated Americans in (the USA has no proof of vaccination, nor are they letting us in)
There are 100s of variants out there (and always will be) and as we saw with Delta, its impossible to keep them out, so as long as vaccines work, whats the problem with Travel in a vaccinated population?