Well, assuming you support euthanasia (NL), or like visiting a country which let the Wermacht pass through it into Russia (SW) and speaks about its “200 years of peace”, one that makes simple possession of drugs illegal (DEN), one in which surprisingly there is 0% incidence of Down’s syndrome (ICE), and too tired to look for something in FIN.
None of those are policies which discriminate against potential attendees of a conference or would cause them hassle.
>Wermacht pass through it into Russia
Very relevant 70 years ago.
edit: You seem to be confused about the difference between "policies I personally don't like" and "policies which aim to hurt a certain group that is attending this conference."
Mmmh it depends on: age and health of the visitor; whether he carries stuff considered “drugs”, or if he or she visits with a child with Down’s and is frowned upon (not unlikely).
So being proud of the acts to keep peace (whatever they are) is irrelevant.