Clearly false.
The flu jab is typically 50% effective or some years less. The flu jab is not universally administered. You cannot explain a tenfold difference in fatality through flu vaccinating.
Public Health England has published flu vaccine effectiveness data for the 2017 to 2018 season.
www.gov.uk
Well, if that's your point, why didn't you say so!
The differences are:
1. COVID is sufficiently transmissible that unless we vaccinate most people, it is likely we will get a further significant wave of disease.
2. The number of unvaccinated, plus those who vaccinating does not protect are such that wave would likely be of similar size to those just passed.
3. Everyone is at risk from COVID; long COVID symptoms are real and severe.
4. The flu vaccine is nowhere near as effective as the COVID vaccines are.