I am surprised that you are so sure ... honestly.
Independence and freedom are very complicated concepts, for sure.
As we have seen with the Covid pandemic and vaccination.
Our world has changed so much and we are all inter-dependent- be it industry, agriculture, fishing, energy, medicines and research in every field, workers, imports and exports and routes (especially when an island. Remember the limits of Raab's geography education)- and so much more.
But if you are going to be 'free and independent' whatever that really means in this modern, inter-connected world- you need to be trusted, and for you words and promises to be seen and experienced as being honest and true.
What has happened since Johnson took over, has made the whole world question, or even be sure, that the UK cannot be a trusted partner. Very sad that the reality is, that all of us British are seen as part of this.