Evolution is settled science but the debate over it will continue indefinitely because there exist people for which it is completely incompatible with their belief system.

In a similar fashion, the debate over JFK will continue for so long as the current power structure remains in place in America, because admitting to complicity in state crimes against democracy would completely undermine the legitimacy of their claim to power.

With that closing remark, I'm happy to disengage like you suggested, comrade.