You are just circling around now. If the rape charge is politically motivated, then it is not legitimate. So the question of whether or not this case is politically motivated remain.
Of course this is ignoring the fact there is no rape charge as of yet.
Whether or not the rape investigation is politically motivated or not is irrelevant, it must still be investigated. And part of that investigation is interviewing Julian Assange to let him give his side.
In reality, the investigation will most likely be dropped since they don't seem to have any evidence and it's their words against his.
> part of that investigation is interviewing Julian Assange to let him give his side.
If this is politically motivated, Sweden wants Assange in their jurisdiction to extradite him -- which seems plausible given that Sweden refuses to interview Assange over phone or in the UK. Does that seem normal to you? To have a suspect extradited for "interviewing"?
Of course this is ignoring the fact there is no rape charge as of yet.