[cigattIcTot]

The Buddha taught that both eternalism and annhiliationism are wrong views,.

Possibly. But is it certain the Buddha was referring to reincarnation or post mortem rebirth when discussing the notions of 'eternalism' and 'annhiliationism' as wrong views? Or was Buddha referring to something else, such as 'self-view', when mentioning the notions of 'eternalism' and 'annhiliationism' are wrong views?

which to me suggest the problem is mostly about holding a fixed closed minded view...

Is there any evidence to show this was the Buddha's intention when discussing the notions of 'eternalism' and 'annhiliationism'?

Buddha must have spoken about these things for a reason...

what things, specifically? what Buddha spoke about or what your guru spoke to you about?

Now, householders, of those who hold this doctrine, hold this view, it can be expected that, shunning these three unskillful activities — bad bodily conduct, bad verbal conduct, bad mental conduct — they will adopt & practice these three skillful activities: good bodily conduct, good verbal conduct, good mental conduct. Thus this safe-bet teaching, when well grasped & adopted by him, covers both sides, and leaves behind the possibility of the unskillful.

MN 60 And what is the right view that has effluents, sides with merit & results in acquisitions?

'There is what is given, what is offered, what is sacrificed. There are fruits & results of good & bad actions. There is this world & the other worlds. There is mother & father. There are spontaneously born beings; there are brahmans & contemplatives who, faring rightly & practicing rightly, proclaim this world & the others after having directly known & realized it for themselves.'

This is the right view that has effluents, sides with merit & results in acquisitions

MN 117