We cannot control the rash actions of the EU, all we can do is control our actions. A more conciliatory response from the UK might have been wiser, than simply to just say its a contractual dispute.
It is a contractual dispute, we have no power to resolve it.
The EU could have asked for our help with their vaccination shortfall but instead they chose to, very publicly, blame us for something we had absolutely nothing to do with.
Substituting the word hate for disagreement is provocative which is quite the opposite of conciliatory. Until today I've had no strong emotions with regard to the EU, sorry I'm not able to support your narrative but I do wonder if there maybe an element of confession by projection in your accusations of hate.