> It's no longer theoretical that antibody dependent enhancement (ADE) is a concern for the vaccinatedIMO this is too strongly worded and doesn't paint an accurate picture. First of all, ADE is a concern for anyone infected by a virus, whether through vaccination or natural infection. Second, there is substantial literature showing that immune responses can still be protective even in the presence of ADE [1]. Third, OP uses a molecular modelling approach which places it mostly in the realm of theory and far from conclusive clinical evidence.
Some quotes from [1] to support my point:
> It is clear that after many years, and considerable attention, the understanding of ADE of disease after either vaccination or administration of antiviral antibodies is insufficient to confidently predict that a given immune intervention for a viral infection will have negative outcomes in humans.
> Despite the importance that such information would have in the COVID-19 pandemic, in vitro assays do not predict ADE of disease.
> Most animal models of vaccines and antibody interventions show protection, whereas those that suggest potential ADE of disease are not definitive and the precise mechanisms have not been defined.
> Although ADE is a concern, it is also clear that antibodies are a fundamentally important component of protective immunity to all of the pathogens discussed here
> Even when vaccine formulations such as formalin inactivation have shown disease enhancement, neutralizing antibodies with optimized properties have been protective.
[1] A perspective on potential antibody-dependent enhancement of SARS-CoV-2
https://www.nature.com/articles/s41586-020-2538-8