should we focus more in 8 fold path as core resolution and performing often chanting/praying without spirit tablet
8 fold path is the path of viewing in terms of not-self & dependent origination . Dependent origination is the view that the impersonal element of ignorance is the primary cause of unwholesome actions.
often chanting/praying is not the 8 fold path
obviously the example provided in the question is of a person/mind unable to practise the 8 fold path and abandon identity, personality & self-views
in MN 66, it is clearly taught a new born child has no self-identity, which therefore also applies to an embryo or fetus
yet the individual in the example in the question keeps concocting a personality view of the embryo/fetus and also of the aborter
the individual does not understand the doer of the abortion was the element of ignorance and that the embryo/fetus was mere elements (dhatu)
AN 3.61 says:
In dependence on the six elements the descent of a embryo occurs